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620000 - 629999

620321

6203212 = 1204 + 2644 + 7854.

Page of Squares : First Upload August 4, 2013 ; Last Revised August 4, 2013
by Yoshio Mimura, Kobe, Japan

621770

621770 + 77126 = 8362, 621770 - 77126 = 7382 (Cf. 65).

Page of Squares : First Upload June 15, 2013 ; Last Revised June 15, 2013
by Yoshio Mimura, Kobe, Japan

622972

6229722 = 388094112784, and 38809 = 1972, 4112784 = 20282.

Page of Squares : First Upload June 15, 2013 ; Last Revised June 15, 2013
by Yoshio Mimura, Kobe, Japan

623200

6232002 = 18432*18433 + 18434*18435 + 18436*18437 + 18438*18439 + ... + 20480*20481.

Page of Squares : First Upload June 15, 2013 ; Last Revised June 15, 2013
by Yoshio Mimura, Kobe, Japan

624204

The quadratic polynomial 624204X2 - 4774980X + 9181825 takes the values 22432, 14592, 6892, 2632, 9552, 17332 at X = 1, 2,..., 6.

Page of Squares : First Upload June 15, 2013 ; Last Revised June 15, 2013
by Yoshio Mimura, Kobe, Japan

624260

6242602 = (12 + ... + 242)*(252 + ... + 482)*(492).

Page of Squares : First Upload June 15, 2013 ; Last Revised June 15, 2013
by Yoshio Mimura, Kobe, Japan

625424

6254242 = 391155179776, a square with odd digits except the last digit 6.

Page of Squares : First Upload September 28, 2013 ; Last Revised September 28, 2013
by Yoshio Mimura, Kobe, Japan

625744

6257442 = 391555553536, a square with odd digits except the last digit 6.

Page of Squares : First Upload September 28, 2013 ; Last Revised September 28, 2013
by Yoshio Mimura, Kobe, Japan

626076

6260762 = 391971157776, a square with odd digits except the last digit 6.

Page of Squares : First Upload September 28, 2013 ; Last Revised September 28, 2013
by Yoshio Mimura, Kobe, Japan

626132

6261322 = 392041281424, and 39204 = 1982, 1281424 = 11322.

Page of Squares : First Upload June 15, 2013 ; Last Revised June 15, 2013
by Yoshio Mimura, Kobe, Japan

627166

6271662 = 393337191556, a square with odd digits except the last digit 6.

Page of Squares : First Upload September 28, 2013 ; Last Revised September 28, 2013
by Yoshio Mimura, Kobe, Japan

627264

627264 = (62 + 726 + 4)2.

Page of Squares : First Upload June 15, 2013 ; Last Revised June 15, 2013
by Yoshio Mimura, Kobe, Japan

628319

628319 is the 7th prime for which Legendre Symbol (a/628319) = 1 for a = 1,2,...,36.

Page of Squares : First Upload June 15, 2013 ; Last Revised June 15, 2013
by Yoshio Mimura, Kobe, Japan

628646

6286462 = 395195793316, a square with odd digits except the last digit 6.

Page of Squares : First Upload September 28, 2013 ; Last Revised September 28, 2013
by Yoshio Mimura, Kobe, Japan