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Question
check whether 7n can end with digit 0, for any natural number n
check whether 7n can end with digit 0, for any natural number n
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Solution
Dear Student!
Yes, it will end with zero, when n = 10. For n = 10, it will become 7 × 10 = 70. Here, 7 have factors as 2 and 5, so 7n will end with zero for n = 10.
Dear Student!
Yes, it will end with zero, when n = 10. For n = 10, it will become 7 × 10 = 70. Here, 7 have factors as 2 and 5, so 7n will end with zero for n = 10.
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