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420000 - 429999

420846

4208462 = 177111355716, a square with odd digits except the last digit 6.

Page of Squares : First Upload September 21, 2013 ; Last Revised September 21, 2013
by Yoshio Mimura, Kobe, Japan

421354

4213542 = 177539193316, a square with odd digits except the last digit 6.

Page of Squares : First Upload September 21, 2013 ; Last Revised September 21, 2013
by Yoshio Mimura, Kobe, Japan

421376

4213762 = 177557733376, a square with odd digits except the last digit 6.

Page of Squares : First Upload September 21, 2013 ; Last Revised September 21, 2013
by Yoshio Mimura, Kobe, Japan

421516

The quadratic polynomial 421516X2 - 3133564X + 6057289 takes the values 18292, 12152, 6712, 5172, 9632, 15592 at X = 1, 2,..., 6.

Page of Squares : First Upload May 11, 2013 ; Last Revised May 11, 2013
by Yoshio Mimura, Kobe, Japan

421637

4216372 = 177777759769, a square contains repeating digits.

Page of Squares : First Upload September 21, 2013 ; Last Revised September 21, 2013
by Yoshio Mimura, Kobe, Japan

421876

4218762 = 177979359376, a square with odd digits except the last digit 6.

Page of Squares : First Upload September 21, 2013 ; Last Revised September 21, 2013
by Yoshio Mimura, Kobe, Japan

422231

422231 is the second prime for which Legendre Symbol (a/42231) =1 for a = 1,2,...,36.

Page of Squares : First Upload May 11, 2013 ; Last Revised May 11, 2013
by Yoshio Mimura, Kobe, Japan

423300

4233002 = 9829*9830 + 9831*9832 + 9833*9834 + 9835*9836 + ... + 12649*12650.

Page of Squares : First Upload May 11, 2013 ; Last Revised May 11, 2013
by Yoshio Mimura, Kobe, Japan

423714

4237142 = 179533553796, a square with odd digits except the last digit 6.

Page of Squares : First Upload September 21, 2013 ; Last Revised September 21, 2013
by Yoshio Mimura, Kobe, Japan

423801

423801 = 6512, a square with different digits.

Page of Squares : First Upload May 11, 2013 ; Last Revised May 11, 2013
by Yoshio Mimura, Kobe, Japan

423924

4239242 = 179711557776, a square with odd digits except the last digit 6.

Page of Squares : First Upload September 21, 2013 ; Last Revised September 21, 2013
by Yoshio Mimura, Kobe, Japan

424214

4242142 = 179957517796, a square with odd digits except the last digit 6.

Page of Squares : First Upload September 21, 2013 ; Last Revised September 21, 2013
by Yoshio Mimura, Kobe, Japan

424256

4242562 = 179993153536, a square with odd digits except the last digit 6.

Page of Squares : First Upload September 21, 2013 ; Last Revised September 21, 2013
by Yoshio Mimura, Kobe, Japan

424694

4246942 = 180364993636, and 1803649 = 13432, 93636 = 3062.

Page of Squares : First Upload May 11, 2013 ; Last Revised May 11, 2013
by Yoshio Mimura, Kobe, Japan

426650

4266502 = 14997*14998 + 14999*15000 + 15001*15002 + 15003*15004 + ... + 16465*16466.

Page of Squares : First Upload May 11, 2013 ; Last Revised May 11, 2013
by Yoshio Mimura, Kobe, Japan

427716

4277162 = - 94 + 84 + 74 + 6544 + 34 - 24 - 14.

Page of Squares : First Upload May 11, 2013 ; Last Revised May 11, 2013
by Yoshio Mimura, Kobe, Japan

427896

The quadratic polynomial 427896X2 - 2365104X + 3447649 takes the values 12292, 6552, 4512, 9132, 15232, 21592 at X = 1, 2,..., 6.

Page of Squares : First Upload May 11, 2013 ; Last Revised May 11, 2013
by Yoshio Mimura, Kobe, Japan

428250

4282502 = 4989*4990 + 4991*4992 + 4993*4994 + 4995*4996 + ... + 10697*10698.

Page of Squares : First Upload May 11, 2013 ; Last Revised May 11, 2013
by Yoshio Mimura, Kobe, Japan

429520

4295202 = 7312*7313 + 7314*7315 + 7316*7317 + 7318*7319 + ... + 11440*11441.

Page of Squares : First Upload May 11, 2013 ; Last Revised May 11, 2013
by Yoshio Mimura, Kobe, Japan

429702

4297022 = 886*887 + 888*889 + 890*891 + 892*893 + ... + 10348*10349.

Page of Squares : First Upload May 11, 2013 ; Last Revised May 11, 2013
by Yoshio Mimura, Kobe, Japan