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770414

770414² = 593537731396, 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

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770424

770424² = 593553139776, 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

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770971

(770971² - 7) = (4² - 7)(6² - 7)(8² - 7)(16² - 7)(17² - 7)(24² - 7)
= (4² - 7)(5² - 7)(6² - 7)(16² - 7)(24² - 7)(30² - 7).

Page of Squares : First Upload June 29, 2013 ; Last Revised June 29, 2013
by Yoshio Mimura, Kobe, Japan

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772876

772876² = 597337311376, 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

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775502

775502² = 6206*6207 + 6208*6209 + 6210*6211 + 6212*6213 + ... + 15668*15669.

Page of Squares : First Upload June 29, 2013 ; Last Revised June 29, 2013
by Yoshio Mimura, Kobe, Japan

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776161

776161 = 881², a square with 3 kinds of digits.

Page of Squares : First Upload June 29, 2013 ; Last Revised June 29, 2013
by Yoshio Mimura, Kobe, Japan

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777600

30⁴ + 777600 = 1260², 30⁴ - 777600 = 180².

Page of Squares : First Upload June 29, 2013 ; Last Revised June 29, 2013
by Yoshio Mimura, Kobe, Japan

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779820

779820² = 29789*29790 + 29791*29792 + 29793*29794 + ... + 31099*31100.

Page of Squares : First Upload June 29, 2013 ; Last Revised June 29, 2013
by Yoshio Mimura, Kobe, Japan

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