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9, Can the number 4n, n being a natural number end with the digit 0? Given reasons. |
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Answer» For unit's digit to be 0, then 4n should have 2 and 5 as its prime factors, but 4n =( 2²)n. it does not contain 5 as one of its prime factors.hence, 4n will not end with digit 0 |
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