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प्रश्न
6n can not end with digit 0 for ______ value of n.
रिकाम्या जागा भरा
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उत्तर
6n can not end with digit 0 for any value of n.
Explanation:
A number ends with 0 only if it is divisible by 10 (i.e., has prime factors 2 and 5). But 6n = (2 × 3)n = 2n × 3n, which has no factor 5 for any n, so 6n is never divisible by 10 and therefore never ends with the digit 0.
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