Question

check whether 12n ends with the digit 0 for any natural number.​

Answer 1

Here number =12^n where n stand for any natural number

Now 12^n=(2×2×3)^n

Now for 12^n to ens with 0 it should have 2 as well as 5 in its prime factors to end with 0 ,Also to end with 5 it requires at least a single a single multiple of 5 in its prime factors

So 12,cannot end with the digit 0 .

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