Can the number 6n , n being a natural number, end with the digit 0? Give reasons
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6n=2n x 3n
For any number ending with 0 the prime factor 2 OR 5 should be there in its prime factorisation (for eg: 10=5×2,20=2×2x5,30=5x2×3). In all these 2 and 5 are necessary prime number. But 6n has only 2 and 3 as prime factors.So 6n can never end with digit 0 for any natural number n.
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