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| SOD (Posted on 2008-07-09) |
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Denote "sod(x)" as sum of the digits of x. Examples: sod(49) = 4 + 9 = 13; sod(123) = 1 + 2 + 3 = 6.
Find sod(sod(sod(4444^4444))).
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Subject |
Author |
Date |
 | Solution | Dej Mar | 2008-07-09 21:27:18 |
| Solution | K Sengupta | 2008-07-09 11:37:01 |
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