Question

6. A number is divisible by both 5 and 12, by
which other number will that number be
always divisible?​

Answer 1

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Factors of 5 = 1,5

Factors of 12 = 1, 2, 3, 4, 6, 12

5 and 12 are co-primes, and we know that if a number is divisible by two co-primes, then it is a known fact that it is also divisible by their product.

The product of 5 and 12 is 60. Hence, the number is always divisible by 60.