Question

Check wheather the number 15^ n where n is a natural number can end with 0

Answer 1

As we know that

15n = (3 x 5)n

  =  3n x 5n

The prime factorization of 15 doesn't have a 2 and 5 as its factor. So, its factorization will never end in 10 as a number ending in 10 must have a factors as 5 and 2. So, 15n will never end in zero as 15 doesn't has 2 as a factor.



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Answer 2

no as anything with a power 0 is also 1 and for negative and positive values to end with zero a number should be of the form 2 raise to n and 5 raise to m