Question

check whether 15 raise to power n can end with digit 0​

Answer 1

☺Hey mate ☺

We know that -

${15}^{n} = {3}^{n} \times {5}^{n}$

it's prime factor is 5^n so it

can end with 0 because the number that ends with 0 is always divisible by 5.

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