Question8. 12^n can end with the
digit 0 where n is a positive integer.Yes/No Why?
Answer8. To end in zero the prime factorisation of a no. should comtain 2 and 5 as factors
but prime factorisation of 12 = (2×2×3) which is unique by fundamental theorem of arithmetic.
Therefore given no. does not contain 5 as factor and hence cannot end in 0.