39 and 45 are not relatively prime because they have 3 as a common factor. Relatively prime numbers have no common factor greater than 1.
No, they are not.
nope!
Yes.
Yes.
A prime number has only 2 factors which are 1 and itself. Composite numbers are everything else except 1 and 0. 1 and 0 are neither prime, nor composite. 45 and 102 are both composite.
No, 102 and 321 are not relatively prime. Relatively prime numbers only have the number 1 as a common factor. 102 and 321 have other common factors, like 3.
No, 45 and 84 are not relatively prime.
Yes, 45 and 64 are relatively prime because they do not share any prime factors.
39 and 45 are not relatively prime because they have 3 as a common factor. Relatively prime numbers have no common factor greater than 1.
Since the GCF of 45 and 56 is 1, they are relatively prime.
No, they are not.
No, they are not.
24 and 49 are relatively prime. Their only common factor is 1. All the other pairs have more than the number 1 as a common factor.
Yes.
nope!
Yes.