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| Last Digit II (Posted on 2014-03-14) |
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Can the last digit in the base ten expansion of X2X be 4, whenever X is a positive integer?
If so, give an example. If not, prove it.
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Subject |
Author |
Date |
 | re: Answer | K Sengupta | 2022-09-02 22:31:07 |
 | Answer | Math Man | 2014-03-19 21:04:12 |
| Solution | tomarken | 2014-03-14 10:01:09 |
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