check wether 4^n can end with the digit zero for any natural number n.
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check wether 4^n can end with the digit zero for any natural number n.
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Answer:
If the number 4n for any n were to end with the digit zero then it would be divisible by 5 and 2. that is Prime factorization of 4n would contain the Prime 5 and 2. ... So there is no natural number n for which 4n ends with the digit zero.