find remainder when 7 to the power 15 divided by 5
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Step-by-step explanation:
The other answers are the typical way to do this problem, but you might also notice that if we knew the remainder when 715 is divided by 10, then we would know the remainder when it is divided by 5. (It would be the same remainder if it were in {0,1,2,3,4}, and it would be five less if it were in {5,6,7,8,9}.)
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the remainder of 7to the power 15 when divided by5 is3
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