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by ENHSmath » Wed May 01, 2013 12:30 pm

The sum of the digits of the number (4^1000)(25^1002) is:

answer 13

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Re: Question

by darksaber21 » Wed May 01, 2013 4:11 pm

Since 4 x 25 = 100, then

[unparseable or potentially dangerous latex formula]

The only nonzero digits is from 625, thus 6 + 2 + 5 = 13.

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