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| Digit addition and insertion (Posted on 2011-10-27) |
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(I) Determine all possible base ten 8-digit perfect square(s) N, with no leading zeroes, such that the number obtained by increasing the second digit (reading left to right) of N by 1 is also a perfect square.
(II)Determine all possible base ten 4-digit perfect square(s) N, with no leading zeroes, such that the number obtained by inserting two zeroes between the thousands digit and the hundreds digit of N is also a perfect square.
**** Calculators are allowed, but no computer programs.
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Subject |
Author |
Date |
 | No Subject | K Sengupta | 2023-08-05 12:31:01 |
| supplement manufacturers | Bradley Bauer | 2023-08-05 04:45:39 |
| Mental | Bradley Bauer | 2023-07-26 07:02:26 |
| x3diamond | Bradley Bauer | 2023-07-26 06:49:19 |
| 8 | Bradley Bauer | 2023-07-26 06:27:36 |
| 7 | Bradley Bauer | 2023-07-26 06:09:41 |
| 6 | Bradley Bauer | 2023-07-26 05:51:41 |
| 5 | Bradley Bauer | 2023-07-26 05:34:05 |
| 4 | Bradley Bauer | 2023-07-26 05:14:41 |
| re(2): answers | Kevin | 2022-01-31 10:07:01 |
| re: answers | Charlie | 2011-10-27 18:31:11 |
 | answers | Dej Mar | 2011-10-27 12:32:53 |
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