Question

25. Check whether 12" can end with the digit 'O' for any natural number n.​

Answer 1

Answer:

By prime factorization method,

12=2x2x3

Therefore, 12^n can not end with the digit '0' because the prime factorization of 12 does not contain the prime 5.

If the number 12^n, for any natural number n, were to end with the digit '0', then it would be divisible by 5.