show that 9 power n cannot end with digit 0 for any natural number N
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natural number start with 1
if you put n=1, 9¹ =9
n=2, 9²= 81
and so on ....
thus for n=natural number it would not be zero
if you put n=1, 9¹ =9
n=2, 9²= 81
and so on ....
thus for n=natural number it would not be zero
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the 9 power n cannot end with digit 0 for any natural number N because in the table of 9 any 0 is not come
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