83007
830072± 2 are primes.
Page of Squares : First Upload April 5, 2014 ; Last Revised April 5, 2014by Yoshio Mimura, Kobe, Japan
83019
830192± 2 are primes.
Page of Squares : First Upload April 5, 2014 ; Last Revised April 5, 2014by Yoshio Mimura, Kobe, Japan
83061
830612± 2 are primes.
Page of Squares : First Upload April 5, 2014 ; Last Revised April 5, 2014by Yoshio Mimura, Kobe, Japan
83076
830762 = (32 + 5)(92 + 5)(312 + 5)(772 + 5).
Page of Squares : First Upload April 5, 2014 ; Last Revised April 5, 2014by Yoshio Mimura, Kobe, Japan
83079
830792 = 1683 + 1693 + 1703 + 1713 + ... + 4103.
Page of Squares : First Upload December 1, 2012 ; Last Revised December 1, 2012by Yoshio Mimura, Kobe, Japan
83088
830882 = (12 + 8)(22 + 8)(42 + 8)(16322 + 8) = (42 + 8)(102 + 8)(16322 + 8).
Page of Squares : First Upload April 5, 2014 ; Last Revised April 5, 2014by Yoshio Mimura, Kobe, Japan
83106
831062 = (12 + 2)(52 + 2)(132 + 2)(222 + 2)(322 + 2).
Page of Squares : First Upload April 5, 2014 ; Last Revised April 5, 2014by Yoshio Mimura, Kobe, Japan
83160
6632 + 83160 = 7232, 6632 - 83160 = 5972.
831602 = (22 - 1)(32 - 1)(42 - 1)(102 - 1)(132 - 1)(342 - 1)
= (22 - 1)(42 - 1)(52 - 1)(62 - 1)(102 - 1)(432 - 1) = (22 - 1)(42 - 1)(102 - 1)(292 - 1)(432 - 1)
= (22 - 1)(52 - 1)(62 - 1)(82 - 1)(102 - 1)(212 - 1) = (22 - 1)(52 - 1)(102 - 1)(132 - 1)(762 - 1)
= (22 - 1)(52 - 1)(102 - 1)(292 - 1)(342 - 1) = (22 - 1)(62 - 1)(102 - 1)(192 - 1)(432 - 1)
= (22 - 1)(82 - 1)(102 - 1)(212 - 1)(292 - 1) = (22 - 1)(82 - 1)(60492 - 1)
= (22 - 1)(102 - 1)(112 - 1)(132 - 1)(342 - 1) = (22 - 1)(132 - 1)(342 - 1)(1092 - 1)
= (22 - 1)(992 - 1)(4852 - 1) = (32 - 1)(52 - 1)(82 - 1)(102 - 1)(762 - 1)
= (32 - 1)(82 - 1)(102 - 1)(112 - 1)(342 - 1) = (32 - 1)(82 - 1)(342 - 1)(1092 - 1)
= (42 - 1)(52 - 1)(102 - 1)(132 - 1)(342 - 1) = (42 - 1)(82 - 1)(102 - 1)(132 - 1)(212 - 1)
= (42 - 1)(102 - 1)(112 - 1)(1972 - 1) = (42 - 1)(1092 - 1)(1972 - 1)
= (62 - 1)(102 - 1)(132 - 1)(1092 - 1) = (62 - 1)(292 - 1)(4852 - 1)
= (82 - 1)(102 - 1)(312 - 1)(342 - 1) = (102 - 1)(132 - 1)(192 - 1)(342 - 1).
by Yoshio Mimura, Kobe, Japan
83171
831712 = (32 + 2)(250772 + 2).
Page of Squares : First Upload April 5, 2014 ; Last Revised April 5, 2014by Yoshio Mimura, Kobe, Japan
83210
832102 = (232 + 1)(282 + 1)(1292 + 1).
Page of Squares : First Upload November 16, 2013 ; Last Revised November 16, 2013by Yoshio Mimura, Kobe, Japan
83232
832322 = (22 + 8)(32 + 8)(82 + 8)(142 + 8)(482 + 8).
Page of Squares : First Upload April 5, 2014 ; Last Revised April 5, 2014by Yoshio Mimura, Kobe, Japan
83248
832482 = (22 + 7)(62 + 7)(312 + 7)(1232 + 7).
Page of Squares : First Upload April 5, 2014 ; Last Revised April 5, 2014by Yoshio Mimura, Kobe, Japan
83250
832502 = (12 + 9)(62 + 9)(192 + 9)(2042 + 9) = (12 + 9)(1292 + 9)(2042 + 9)
= (32 + 9)(42 + 9)(192 + 9)(2042 + 9) = (42 + 9)(62 + 9)(192 + 9)(1292 + 9)
= (192 + 9)(212 + 9)(2042 + 9).
by Yoshio Mimura, Kobe, Japan
83334
833342 = (62 + 2)(72 + 2)(272 + 2)(702 + 2) = (62 + 2)(272 + 2)(5002 + 2)
= (272 + 2)(442 + 2)(702 + 2).
by Yoshio Mimura, Kobe, Japan
83349
833492± 2 are primes.
Page of Squares : First Upload April 5, 2014 ; Last Revised April 5, 2014by Yoshio Mimura, Kobe, Japan
83394
833942 = (272 + 9)(452 + 9)(682 + 9).
Page of Squares : First Upload April 5, 2014 ; Last Revised April 5, 2014by Yoshio Mimura, Kobe, Japan
83398
833982± 3 are primes.
Page of Squares : First Upload April 5, 2014 ; Last Revised April 5, 2014by Yoshio Mimura, Kobe, Japan
83416
834162± 3 are primes.
Page of Squares : First Upload April 5, 2014 ; Last Revised April 5, 2014by Yoshio Mimura, Kobe, Japan
83423
834232 = 6959396929, a square pegged by 9.
Page of Squares : First Upload December 1, 2012 ; Last Revised December 1, 2012by Yoshio Mimura, Kobe, Japan
83458
834582± 3 are primes.
Page of Squares : First Upload April 5, 2014 ; Last Revised April 5, 2014by Yoshio Mimura, Kobe, Japan
83504
835042± 3 are primes.
Page of Squares : First Upload April 5, 2014 ; Last Revised April 5, 2014by Yoshio Mimura, Kobe, Japan
83520
835202 = (22 - 1)(32 - 1)(592 - 1)(2892 - 1) = (52 - 1)(592 - 1)(2892 - 1).
Page of Squares : First Upload April 5, 2014 ; Last Revised April 5, 2014by Yoshio Mimura, Kobe, Japan
83521
83521 = 2892, a square with different digits.
Page of Squares : First Upload December 1, 2012 ; Last Revised December 1, 2012by Yoshio Mimura, Kobe, Japan
83524
835242 = (22 + 3)(42 + 3)(252 + 3)(2892 + 3).
Page of Squares : First Upload April 5, 2014 ; Last Revised April 5, 2014by Yoshio Mimura, Kobe, Japan
83525
835252 = (22 + 1)(182 + 1)(20722 + 1).
Page of Squares : First Upload November 16, 2013 ; Last Revised November 16, 2013by Yoshio Mimura, Kobe, Japan
83544
2952 + 83544 = 4132, 2952 - 83544 = 592.
Page of Squares : First Upload December 1, 2012 ; Last Revised December 1, 2012by Yoshio Mimura, Kobe, Japan
83548
835482± 3 are primes.
Page of Squares : First Upload April 5, 2014 ; Last Revised April 5, 2014by Yoshio Mimura, Kobe, Japan
83590
835902± 3 are primes.
Page of Squares : First Upload April 5, 2014 ; Last Revised April 5, 2014by Yoshio Mimura, Kobe, Japan
83600
836002± 3 are primes.
Page of Squares : First Upload April 5, 2014 ; Last Revised April 5, 2014by Yoshio Mimura, Kobe, Japan
83665
836652 = (122 + 1)(69482 + 1).
Page of Squares : First Upload November 16, 2013 ; Last Revised November 16, 2013by Yoshio Mimura, Kobe, Japan
83666
836662 = 6999999556, a square with 3 kinds of digits.
Page of Squares : First Upload December 1, 2012 ; Last Revised December 1, 2012by Yoshio Mimura, Kobe, Japan
83694
836942 = (22 + 9)(72 + 9)(182 + 9)(1672 + 9).
Page of Squares : First Upload April 5, 2014 ; Last Revised April 5, 2014by Yoshio Mimura, Kobe, Japan
83810
838102 = (42 + 1)(132 + 1)(382 + 1)(412 + 1).
Page of Squares : First Upload November 16, 2013 ; Last Revised November 16, 2013by Yoshio Mimura, Kobe, Japan
83811
838112± 2 are primes.
Page of Squares : First Upload April 5, 2014 ; Last Revised April 5, 2014by Yoshio Mimura, Kobe, Japan
83862
838622± 5 are primes.
Page of Squares : First Upload April 5, 2014 ; Last Revised April 5, 2014by Yoshio Mimura, Kobe, Japan
83919
839192 = 7042398561, a square with different digits.
Page of Squares : First Upload December 1, 2012 ; Last Revised December 1, 2012by Yoshio Mimura, Kobe, Japan
83980
839802 = 2563 + 2573 + 2583 + 2593 + ... + 4243.
Page of Squares : First Upload December 1, 2012 ; Last Revised December 1, 2012by Yoshio Mimura, Kobe, Japan
83990
839902 = 31252 + 31262 + 31272 + ... + 37242.
Page of Squares : First Upload December 1, 2012 ; Last Revised December 1, 2012by Yoshio Mimura, Kobe, Japan