Check whether 4^n, where n is a natural number will ends with the digit zero
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no. 4^n can nevr have zero at unit digit
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No any number of form 4^n can't end with zero.
This because for a number to end in 0 it must have 2 and 5 as one of it's prime factors so that it could be divisible by 10 and hence end in zero.
But 4^n doesn't have 5 as it's prime factor hence can't end in zero.
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