No. They are both divisible by 2, making them not relatively prime.
12 = 2 * 2 * 3 OR 22 * 3
12 = 22 x 3
22 x 3 = 12
3*22
Start with the fact that 12 is 4x3. Now note that 4 is 22 .This means 12 =22 x3.This is the exponential form of the prime factorization.
22 x 3 = 12
22 x 3 = 12
12 = 22 x 31
22 x 3 = 12
22 X 31
The prime factors of 100 are: 2 * 2 * 5 * 5
Prime factors of 12 are 22 and 3 Prime factors of 15 are 3 and 5 Prime factors of 22 are 2 and 11 Least common multiple = 22*3*5*11 = 660