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20000 - 20999

20001

200012 = 400040001 is a reversible square (100040004 = 100022).

200012 = 400040001 is a square consisting of 3 kinds of digits.

Page of Squares : First Upload March 3, 2012 ; Last Revised March 3, 2012
by Yoshio Mimura, Kobe, Japan

20002

200022 = 400080004 is a palindromic square.

200022 = 400080004 is a square consisting of 3 kinds of even digits.

Page of Squares : First Upload March 3, 2012 ; Last Revised March 3, 2012
by Yoshio Mimura, Kobe, Japan

20010

200102 = (132 + 5)(152 + 5)(1002 + 5).

Page of Squares : First Upload February 8, 2014 ; Last Revised February 8, 2014
by Yoshio Mimura, Kobe, Japan

20011

200112 = 400440121 is a reversible square (121044004 = 110022).

Page of Squares : First Upload March 3, 2012 ; Last Revised March 3, 2012
by Yoshio Mimura, Kobe, Japan

20012

200122 = 400480144 is a reverdible square (441084004 = 210022).

Page of Squares : First Upload March 3, 2012 ; Last Revised March 3, 2012
by Yoshio Mimura, Kobe, Japan

20021

200212 = 400840441 is a reversible square (144048004 = 120022).

Page of Squares : First Upload March 3, 2012 ; Last Revised March 3, 2012
by Yoshio Mimura, Kobe, Japan

20022

200222± 5 are primes.

200222 = 400880484 is a reversible square (484088044 = 220022).

200222 = 400880484 is a square consisting of 3 kinds of even digits.

Page of Squares : First Upload March 3, 2012 ; Last Revised February 8, 2014
by Yoshio Mimura, Kobe, Japan

20044

200442± 3 are primes.

Page of Squares : First Upload February 8, 2014 ; Last Revised February 8, 2014
by Yoshio Mimura, Kobe, Japan

20056

200562± 3 are primes.

Page of Squares : First Upload February 8, 2014 ; Last Revised February 8, 2014
by Yoshio Mimura, Kobe, Japan

20064

200642 = (42 + 8)(62 + 8)(122 + 8)(502 + 8).

1852 + 20064 = 2332, 1852 - 20064 = 1192.

Page of Squares : First Upload March 3, 2012 ; Last Revised February 8, 2014
by Yoshio Mimura, Kobe, Japan

20079

200792 = 13442 + 13452 + 13462 + ... + 15372.

Page of Squares : First Upload March 3, 2012 ; Last Revised March 3, 2012
by Yoshio Mimura, Kobe, Japan

20089

200892 = 403567921 is a square consisting of different digits.

Page of Squares : First Upload March 3, 2012 ; Last Revised March 3, 2012
by Yoshio Mimura, Kobe, Japan

20100

201002 = (13 + 9)(53 + 9)(63 + 9)(113 + 9).

Page of Squares : First Upload February 8, 2014 ; Last Revised February 8, 2014
by Yoshio Mimura, Kobe, Japan

20101

201012 = 404050201 is a reversible square (102050404 = 101022).

201012 = 404050201, and 44521 = 2112.

Page of Squares : First Upload March 3, 2012 ; Last Revised March 3, 2012
by Yoshio Mimura, Kobe, Japan

20102

201022 = 404090404 is a palindromic square consisting of 3 kinds of digits.

201022 = 404090404, and 44944 = 2122.

Page of Squares : First Upload March 3, 2012 ; Last Revised March 3, 2012
by Yoshio Mimura, Kobe, Japan

20111

201112 = 404452321 is a reversible square (123254404 = 111022).

Page of Squares : First Upload March 3, 2012 ; Last Revised March 3, 2012
by Yoshio Mimura, Kobe, Japan

20112

201122 = 404492544 is a reversible square (445294404 = 211022).

Page of Squares : First Upload March 3, 2012 ; Last Revised March 3, 2012
by Yoshio Mimura, Kobe, Japan

20121

201212 = 404854641 is a reversible square (146458404 = 121022).

Page of Squares : First Upload March 3, 2012 ; Last Revised March 3, 2012
by Yoshio Mimura, Kobe, Japan

20122

201222 = 404894884 is a reversible square (488498404 = 221022).

Page of Squares : First Upload March 3, 2012 ; Last Revised March 3, 2012
by Yoshio Mimura, Kobe, Japan

20124

201242± 5 are primes.

Page of Squares : First Upload February 8, 2014 ; Last Revised February 8, 2014
by Yoshio Mimura, Kobe, Japan

20126

201262± 3 are primes.

Page of Squares : First Upload February 8, 2014 ; Last Revised February 8, 2014
by Yoshio Mimura, Kobe, Japan

20152

201522 = 34922 + 34932 + 34942 + ... + 35242.

Page of Squares : First Upload March 3, 2012 ; Last Revised March 3, 2012
by Yoshio Mimura, Kobe, Japan

20160

201602 = (112 - 1)(192 - 1)(972 - 1) = (152 - 1)(192 - 1)(712 - 1) = (172 - 1)(292 - 1)(412 - 1)
= (22 - 1)(112 - 1)(152 - 1)(712 - 1) = (22 - 1)(132 - 1)(292 - 1)(312 - 1)
= (22 - 1)(152 - 1)(192 - 1)(412 - 1) = (22 - 1)(32 - 1)(112 - 1)(132 - 1)(292 - 1)
= (22 - 1)(32 - 1)(42 - 1)(112 - 1)(972 - 1) = (22 - 1)(32 - 1)(42 - 1)(152 - 1)(712 - 1)
= (22 - 1)(32 - 1)(42 - 1)(82 - 1)(92 - 1)(152 - 1)
= (22 - 1)(32 - 1)(52 - 1)(62 - 1)(112 - 1)(132 - 1)
= (22 - 1)(32 - 1)(62 - 1)(172 - 1)(412 - 1) = (22 - 1)(42 - 1)(312 - 1)(972 - 1)
= (22 - 1)(42 - 1)(52 - 1)(152 - 1)(412 - 1)
= (22 - 1)(42 - 1)(52 - 1)(62 - 1)(72 - 1)(152 - 1)
= (22 - 1)(42 - 1)(72 - 1)(152 - 1)(292 - 1) = (22 - 1)(52 - 1)(62 - 1)(132 - 1)(312 - 1)
= (22 - 1)(62 - 1)(72 - 1)(152 - 1)(192 - 1) = (22 - 1)(62 - 1)(92 - 1)(132 - 1)(172 - 1)
= (22 - 1)(72 - 1)(172 - 1)(992 - 1) = (22 - 1)(82 - 1)(92 - 1)(112 - 1)(152 - 1)
= (32 - 1)(132 - 1)(192 - 1)(292 - 1) = (32 - 1)(42 - 1)(192 - 1)(972 - 1)
= (32 - 1)(42 - 1)(52 - 1)(132 - 1)(292 - 1) = (32 - 1)(52 - 1)(62 - 1)(132 - 1)(192 - 1)
= (32 - 1)(52 - 1)(62 - 1)(82 - 1)(312 - 1) = (32 - 1)(62 - 1)(172 - 1)(712 - 1)
= (32 - 1)(62 - 1)(82 - 1)(92 - 1)(172 - 1) = (32 - 1)(82 - 1)(292 - 1)(312 - 1)
= (42 - 1)(412 - 1)(1272 - 1) = (42 - 1)(52 - 1)(112 - 1)(972 - 1)
= (42 - 1)(52 - 1)(152 - 1)(712 - 1) = (42 - 1)(52 - 1)(82 - 1)(92 - 1)(152 - 1)
= (42 - 1)(62 - 1)(72 - 1)(1272 - 1) = (52 - 1)(112 - 1)(132 - 1)(292 - 1)
= (52 - 1)(62 - 1)(172 - 1)(412 - 1) = (62 - 1)(72 - 1)(172 - 1)(292 - 1)
= (62 - 1)(72 - 1)(92 - 1)(552 - 1) = (72 - 1)(412 - 1)(712 - 1)
= (72 - 1)(82 - 1)(92 - 1)(412 - 1) = (82 - 1)(92 - 1)(152 - 1)(192 - 1)
= (92 - 1)(412 - 1)(552 - 1).

Page of Squares : First Upload February 8, 2014 ; Last Revised February 8, 2014
by Yoshio Mimura, Kobe, Japan

20164

20164 is a square (1422) consisting of different digits.

Page of Squares : First Upload March 3, 2012 ; Last Revised March 3, 2012
by Yoshio Mimura, Kobe, Japan

20178

201782 = (12 + 2)(22 + 2)(47562 + 2) = (12 + 2)(62 + 2)(232 + 2)(822 + 2) = (42 + 2)(47562 + 2).

Page of Squares : First Upload February 8, 2014 ; Last Revised February 8, 2014
by Yoshio Mimura, Kobe, Japan

20184

1452 + 20184 = 2032, 1452 - 20184 = 292.

Page of Squares : First Upload March 3, 2012 ; Last Revised March 3, 2012
by Yoshio Mimura, Kobe, Japan

20196

201962 = (12 + 2)(22 + 2)(32 + 2)(42 + 2)(142 + 2)(242 + 2)
= (12 + 2)(22 + 2)(82 + 2)(102 + 2)(582 + 2) = (12 + 2)(42 + 2)(82 + 2)(142 + 2)(242 + 2)
= (12 + 8)(22 + 8)(32 + 8)(52 + 8)(822 + 8) = (12 + 8)(22 + 8)(32 + 8)(62 + 8)(712 + 8)
= (12 + 8)(32 + 8)(62 + 8)(142 + 8)(172 + 8) = (12 + 8)(52 + 8)(142 + 8)(822 + 8)
= (12 + 8)(62 + 8)(142 + 8)(712 + 8) = (142 + 8)(14142 + 8) = (142 + 8)(172 + 8)(822 + 8)
= (142 + 8)(372 + 8)(382 + 8) = (22 + 2)(102 + 2)(142 + 2)(582 + 2)
= (22 + 2)(32 + 2)(42 + 2)(102 + 2)(582 + 2) = (22 + 2)(32 + 2)(42 + 2)(72 + 2)(82 + 2)(102 + 2)
= (22 + 2)(72 + 2)(82 + 2)(102 + 2)(142 + 2) = (22 + 8)(32 + 8)(14142 + 8)
= (22 + 8)(32 + 8)(172 + 8)(822 + 8) = (22 + 8)(32 + 8)(372 + 8)(382 + 8)
= (22 + 8)(32 + 8)(52 + 8)(142 + 8)(172 + 8) = (22 + 8)(32 + 8)(52 + 8)(62 + 8)(372 + 8)
= (22 + 8)(52 + 8)(142 + 8)(712 + 8) = (22 + 8)(712 + 8)(822 + 8)
= (32 + 8)(52 + 8)(102 + 8)(822 + 8) = (32 + 8)(62 + 8)(102 + 8)(712 + 8) = (382 + 8)(5302 + 8)
= (42 + 2)(82 + 2)(102 + 2)(582 + 2) = (52 + 8)(62 + 8)(142 + 8)(372 + 8)
= (52 + 8)(62 + 8)(5302 + 8) = (62 + 8)(372 + 8)(822 + 8).

Page of Squares : First Upload February 8, 2014 ; Last Revised February 8, 2014
by Yoshio Mimura, Kobe, Japan

20201

202012 = 408080401 is a reversible square (104080804 = 102022).

202012 = 408080401, and 48841 = 2212.

Page of Squares : First Upload March 3, 2012 ; Last Revised March 3, 2012
by Yoshio Mimura, Kobe, Japan

20202

202022 = (22 + 3)(62 + 3)(212 + 3)(582 + 3) = (32 + 3)(62 + 3)(162 + 3)(582 + 3)
= (62 + 3)(162 + 3)(2012 + 3).

Page of Squares : First Upload February 8, 2014 ; Last Revised February 8, 2014
by Yoshio Mimura, Kobe, Japan

20211

202112 = 408484521 is a reversible square (125484804 = 112022).

Page of Squares : First Upload March 3, 2012 ; Last Revised March 3, 2012
by Yoshio Mimura, Kobe, Japan

20213

202132 = S2(753) + S2(927), where S2(n) = 12 + 22 + ... + n2.

Page of Squares : First Upload March 3, 2012 ; Last Revised March 3, 2012
by Yoshio Mimura, Kobe, Japan

20221

202212 = 408888841 is a reversible square (148888804 = 122022).

Page of Squares : First Upload March 3, 2012 ; Last Revised March 3, 2012
by Yoshio Mimura, Kobe, Japan

20230

202302± 3 are primes.

Page of Squares : First Upload February 8, 2014 ; Last Revised February 8, 2014
by Yoshio Mimura, Kobe, Japan

20240

202402 = 409657600, and 4096 = 642, 57600 = 2402.

Page of Squares : First Upload March 3, 2012 ; Last Revised March 3, 2012
by Yoshio Mimura, Kobe, Japan

20264

202642± 3 are primes.

Page of Squares : First Upload February 8, 2014 ; Last Revised February 8, 2014
by Yoshio Mimura, Kobe, Japan

20280

134 + 20280 = 2212, 134 - 20280 = 912.

Page of Squares : First Upload March 3, 2012 ; Last Revised March 3, 2012
by Yoshio Mimura, Kobe, Japan

20286

202862 = (12 + 5)(82 + 5)(312 + 5)(322 + 5) = (12 + 5)(82 + 5)(9972 + 5)
= (172 + 5)(312 + 5)(382 + 5) = (32 + 5)(322 + 5)(1692 + 5) = (32 + 5)(42 + 5)(312 + 5)(382 + 5)
= (32 + 5)(82 + 5)(172 + 5)(382 + 5) = (42 + 5)(82 + 5)(172 + 5)(312 + 5).

Page of Squares : First Upload February 8, 2014 ; Last Revised February 8, 2014
by Yoshio Mimura, Kobe, Japan

20295

202952± 2 are primes.

Page of Squares : First Upload February 8, 2014 ; Last Revised February 8, 2014
by Yoshio Mimura, Kobe, Japan

20300

203002 = (22 + 6)(82 + 6)(202 + 6)(382 + 6).

Page of Squares : First Upload February 8, 2014 ; Last Revised February 8, 2014
by Yoshio Mimura, Kobe, Japan

20308

203082± 3 are primes.

Page of Squares : First Upload February 8, 2014 ; Last Revised February 8, 2014
by Yoshio Mimura, Kobe, Japan

20314

203142± 3 are primes.

Page of Squares : First Upload February 8, 2014 ; Last Revised February 8, 2014
by Yoshio Mimura, Kobe, Japan

20316

203162 = 412739856 is a square consisting of different digits.

Page of Squares : First Upload March 3, 2012 ; Last Revised March 3, 2012
by Yoshio Mimura, Kobe, Japan

20318

203182± 3 are primes.

Page of Squares : First Upload February 8, 2014 ; Last Revised February 8, 2014
by Yoshio Mimura, Kobe, Japan

20320

203202= 50 x 51 + 51 x 52 + 52 x 53 + ... + 1073 x 1074.

Page of Squares : First Upload March 3, 2012 ; Last Revised March 3, 2012
by Yoshio Mimura, Kobe, Japan

20329

203292 = (52 + 4)(37752 + 4).

Page of Squares : First Upload February 8, 2014 ; Last Revised February 8, 2014
by Yoshio Mimura, Kobe, Japan

20342

203422± 3 are primes.

Page of Squares : First Upload February 8, 2014 ; Last Revised February 8, 2014
by Yoshio Mimura, Kobe, Japan

20343

12 + 22 + ... + 203432 = 2806440020084, which consists of even digits.

Page of Squares : First Upload March 3, 2012 ; Last Revised March 3, 2012
by Yoshio Mimura, Kobe, Japan

20359

203592 = 414488881 is a square consisting of 3 kinds of digits.

Page of Squares : First Upload March 3, 2012 ; Last Revised March 3, 2012
by Yoshio Mimura, Kobe, Japan

20370

203702 = (12 + 6)(62 + 6)(11882 + 6) = (22 + 6)(242 + 6)(2672 + 6) = (32 + 6)(242 + 6)(2182 + 6).

Page of Squares : First Upload February 8, 2014 ; Last Revised February 8, 2014
by Yoshio Mimura, Kobe, Japan

20385

203852± 2 are primes.

Page of Squares : First Upload February 8, 2014 ; Last Revised February 8, 2014
by Yoshio Mimura, Kobe, Japan

20410

204102 = (32 + 4)(562 + 4)(1012 + 4).

Page of Squares : First Upload February 8, 2014 ; Last Revised February 8, 2014
by Yoshio Mimura, Kobe, Japan

20412

204122 = (12 + 5)(22 + 5)(32 + 5)(72 + 5)(1012 + 5) = (12 + 5)(72 + 5)(112 + 5)(1012 + 5).

Page of Squares : First Upload February 8, 2014 ; Last Revised February 8, 2014
by Yoshio Mimura, Kobe, Japan

20416

204162 = (132 + 7)(152 + 7)(1012 + 7) = (152 + 7)(312 + 7)(432 + 7)
= (22 + 7)(32 + 7)(152 + 7)(1012 + 7) = (22 + 7)(92 + 7)(152 + 7)(432 + 7).

Page of Squares : First Upload February 8, 2014 ; Last Revised February 8, 2014
by Yoshio Mimura, Kobe, Japan

20433

204332± 2 are primes.

Page of Squares : First Upload February 8, 2014 ; Last Revised February 8, 2014
by Yoshio Mimura, Kobe, Japan

20475

204752 = (42 - 1)(62 - 1)(142 - 1)(642 - 1).

Page of Squares : First Upload February 8, 2014 ; Last Revised February 8, 2014
by Yoshio Mimura, Kobe, Japan

20484

204842± 5 are primes.

204842 = 53 + 913 + 2863 + 7343.

Page of Squares : First Upload March 3, 2012 ; Last Revised February 8, 2014
by Yoshio Mimura, Kobe, Japan

20496

204962± 5 are primes.

Page of Squares : First Upload February 8, 2014 ; Last Revised February 8, 2014
by Yoshio Mimura, Kobe, Japan

20500

205002 = 420250000, and 4 = 22, 20250000 = 45002.

205002 = (12 + 1)(22 + 1)(32 + 1)(72 + 1)(92 + 1)(322 + 1).

Page of Squares : First Upload March 3, 2012 ; Last Revised November 9, 2013
by Yoshio Mimura, Kobe, Japan

20502

205022 = (102 + 2)(20302 + 2).

Page of Squares : First Upload February 8, 2014 ; Last Revised February 8, 2014
by Yoshio Mimura, Kobe, Japan

20508

205082 = 420578064 is a reversible square (460875024 = 214682).

Page of Squares : First Upload March 3, 2012 ; Last Revised March 3, 2012
by Yoshio Mimura, Kobe, Japan

20513

205132 = 420783169 is a sqaure consisting of different digits.

Page of Squares : First Upload March 3, 2012 ; Last Revised March 3, 2012
by Yoshio Mimura, Kobe, Japan

20521

205212 = 421111441 is a square consisting of 3 kinds of digits.

Page of Squares : First Upload March 3, 2012 ; Last Revised March 3, 2012
by Yoshio Mimura, Kobe, Japan

20528

205282± 3 are primes.

Page of Squares : First Upload February 8, 2014 ; Last Revised February 8, 2014
by Yoshio Mimura, Kobe, Japan

20556

205562 = (12 + 8)(22 + 8)(19782 + 8) = (102 + 8)(19782 + 8).

Page of Squares : First Upload February 8, 2014 ; Last Revised February 8, 2014
by Yoshio Mimura, Kobe, Japan

20558

205582± 3 are primes.

Page of Squares : First Upload February 8, 2014 ; Last Revised February 8, 2014
by Yoshio Mimura, Kobe, Japan

20580

205802 = (22 + 6)(62 + 6)(82 + 6)(1202 + 6).

Page of Squares : First Upload February 8, 2014 ; Last Revised February 8, 2014
by Yoshio Mimura, Kobe, Japan

20587

(205872 - 7) = (32 - 7)(42 - 7)(1422 - 7)(182 - 7)(202 - 7).

Page of Squares : First Upload March 3, 2012 ; Last Revised March 3, 2012
by Yoshio Mimura, Kobe, Japan

20592

205922 = (72 - 1)(102 - 1)(122 - 1)(252 - 1).

Page of Squares : First Upload February 8, 2014 ; Last Revised February 8, 2014
by Yoshio Mimura, Kobe, Japan

20602

206022 = 424442404 is a square consisting of 3 kind of even digits.

206022 = 424442404 is a square pegged by 4.

Page of Squares : First Upload March 3, 2012 ; Last Revised March 3, 2012
by Yoshio Mimura, Kobe, Japan

20608

206082 = (12 + 7)(42 + 7)(72 + 7)(2032 + 7)
= (42 + 7)(212 + 7)(2032 + 7) = (42 + 7)(72 + 7)(212 + 7)(272 + 7).

Page of Squares : First Upload February 8, 2014 ; Last Revised February 8, 2014
by Yoshio Mimura, Kobe, Japan

20632

206322± 3 are primes.

Page of Squares : First Upload February 8, 2014 ; Last Revised February 8, 2014
by Yoshio Mimura, Kobe, Japan

20670

206702 = (22 + 9)(92 + 9)(162 + 9)(372 + 9).

Page of Squares : First Upload February 8, 2014 ; Last Revised February 8, 2014
by Yoshio Mimura, Kobe, Japan

20678

206782± 3 are primes.

Page of Squares : First Upload February 8, 2014 ; Last Revised February 8, 2014
by Yoshio Mimura, Kobe, Japan

20691

206912 = (12 + 8)(52 + 8)(72 + 8)(1592 + 8) = (32 + 2)(132 + 2)(192 + 2)(252 + 2)
= (32 + 2)(52 + 2)(192 + 2)(632 + 2) = (72 + 8)(172 + 8)(1592 + 8).

Page of Squares : First Upload February 8, 2014 ; Last Revised February 8, 2014
by Yoshio Mimura, Kobe, Japan

20712

207122± 5 are primes.

Page of Squares : First Upload February 8, 2014 ; Last Revised February 8, 2014
by Yoshio Mimura, Kobe, Japan

20718

207182 = 63 + 93 + 123 + 833 + 7543.

Page of Squares : First Upload March 3, 2012 ; Last Revised March 3, 2012
by Yoshio Mimura, Kobe, Japan

20724

207242 = S2(851) + S2(875), where S2(n) = 12 + 22 + ... + n2.

Page of Squares : First Upload March 3, 2012 ; Last Revised March 3, 2012
by Yoshio Mimura, Kobe, Japan

20736

207362± 5 are primes.

20736 = 1442 is a zigzag square consisting of different digits.

Page of Squares : First Upload March 3, 2012 ; Last Revised February 8, 2014
by Yoshio Mimura, Kobe, Japan

20744

207442 = 430313536 is a square pegged by 3.

Page of Squares : First Upload March 3, 2012 ; Last Revised March 3, 2012
by Yoshio Mimura, Kobe, Japan

20748

207482 = (12 + 3)(32 + 3)(42 + 3)(62 + 3)(1102 + 3) = (12 + 3)(42 + 3)(332 + 3)(722 + 3)
= (12 + 3)(42 + 3)(52 + 3)(62 + 3)(722 + 3) = (12 + 3)(62 + 3)(122 + 3)(1372 + 3)
= (12 + 3)(62 + 3)(152 + 3)(1102 + 3) = (12 + 3)(62 + 3)(232 + 3)(722 + 3)
= (152 + 3)(192 + 3)(722 + 3) = (22 + 3)(32 + 3)(42 + 3)(72 + 3)(722 + 3)
= (22 + 3)(42 + 3)(62 + 3)(152 + 3)(192 + 3) = (22 + 3)(62 + 3)(92 + 3)(1372 + 3)
= (22 + 3)(72 + 3)(152 + 3)(722 + 3) = (32 + 3)(42 + 3)(192 + 3)(722 + 3)
= (42 + 3)(62 + 3)(232 + 3)(332 + 3) = (42 + 3)(72 + 3)(92 + 3)(722 + 3).

Page of Squares : First Upload February 8, 2014 ; Last Revised February 8, 2014
by Yoshio Mimura, Kobe, Japan

20754

207542 = 430728516 is a square consisting of different digits.

Page of Squares : First Upload March 3, 2012 ; Last Revised March 3, 2012
by Yoshio Mimura, Kobe, Japan

20758

207582± 3 are primes.

Page of Squares : First Upload February 8, 2014 ; Last Revised February 8, 2014
by Yoshio Mimura, Kobe, Japan

20771

207712 = 431434441 is a square consisting of 3 kinds of digits.

Page of Squares : First Upload March 3, 2012 ; Last Revised March 3, 2012
by Yoshio Mimura, Kobe, Japan

20798

207982± 3 are primes.

Page of Squares : First Upload February 8, 2014 ; Last Revised February 8, 2014
by Yoshio Mimura, Kobe, Japan

20800

208002 = (12 + 4)(22 + 4)(32 + 4)(62 + 4)(102 + 4)(142 + 4) = (22 + 4)(62 + 4)(102 + 4)(1142 + 4).

Page of Squares : First Upload February 8, 2014 ; Last Revised February 8, 2014
by Yoshio Mimura, Kobe, Japan

20826

208262 = (132 + 9)(152 + 9)(1022 + 9) = (22 + 9)(32 + 9)(132 + 9)(1022 + 9).

Page of Squares : First Upload February 8, 2014 ; Last Revised February 8, 2014
by Yoshio Mimura, Kobe, Japan

20832

208322 = (12 + 3)(32 + 3)(52 + 3)(112 + 3)(512 + 3).

Page of Squares : First Upload February 8, 2014 ; Last Revised February 8, 2014
by Yoshio Mimura, Kobe, Japan

20838

208382 = 434222244 is a square consisting of 3 kinds of digits.

Page of Squares : First Upload March 3, 2012 ; Last Revised March 3, 2012
by Yoshio Mimura, Kobe, Japan

20898

208982 = (12 + 2)(22 + 2)(52 + 2)(162 + 2)(592 + 2) = (162 + 2)(222 + 2)(592 + 2)
= (42 + 2)(52 + 2)(162 + 2)(592 + 2).

Page of Squares : First Upload February 8, 2014 ; Last Revised February 8, 2014
by Yoshio Mimura, Kobe, Japan

20904

209042 = (12 + 3)(32 + 3)(62 + 3)(82 + 3)(592 + 3).

Page of Squares : First Upload February 8, 2014 ; Last Revised February 8, 2014
by Yoshio Mimura, Kobe, Japan

20905

209052 = (12 + 4)(93492 + 4).

Page of Squares : First Upload February 8, 2014 ; Last Revised February 8, 2014
by Yoshio Mimura, Kobe, Japan

20910

209102 = (12 + 9)(52 + 9)(11342 + 9).

Page of Squares : First Upload February 8, 2014 ; Last Revised February 8, 2014
by Yoshio Mimura, Kobe, Japan

20930

209302 = 10262 + 10272 + 10282 + ... + 13372.

Page of Squares : First Upload March 3, 2012 ; Last Revised March 3, 2012
by Yoshio Mimura, Kobe, Japan

20973

209732± 2 are primes.

Page of Squares : First Upload February 8, 2014 ; Last Revised February 8, 2014
by Yoshio Mimura, Kobe, Japan

20992

209922 = 440664064 is a square consisting of 3 kinds of even digits.

Page of Squares : First Upload March 3, 2012 ; Last Revised March 3, 2012
by Yoshio Mimura, Kobe, Japan