Question

Which of the following pair co prime 12,15

Answer 1

Answer:

15 is the pair of co prime numbers

because 15 = 3 * 5 and 3and 5 are co primes

whereas 12 = 3 * 4 and 3 is a co prime but 4 is a product of 2 *2 , not a co prime . therefore 15 is a pair of co prime but 12 is not .