show that 9 " cannot end with 2 for any integer n
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because it is a odd number
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if we devide 9 by 2 we get,
9/2 = 4+1..which never end with 2
9/2 = 4+1..which never end with 2
riya1123p:
To end with the digit 2, there should be 2 in the factorization of a number.
Since, 9^n=3^nX3^n.
ty
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