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Question

Check whether 6n can end with the digit 0 for any natural number n.

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Solution

TO CHECK: Whether 6n can end with the digit 0 for any natural number n.

We know that,

6n=(2×3)n

6n=2n×3n

Therefore, prime factorization of 6n does not contain 5 and 2 as a factor together.

Hence, 6n can never end with the digit 0 for any natural number n


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