show that 12 power n cannot end with digit 0 for any natural number N
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12 to power of n can not end with 0.
because 12 can be written as 2*2*3
it factor 2 but it don't have. 5 as factor.
so 12n can't be a a natural number ending with 0
because 12 can be written as 2*2*3
it factor 2 but it don't have. 5 as factor.
so 12n can't be a a natural number ending with 0
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