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.
No :P
Both are divisible by 3.
No, they're both divisible by three.
321 = 3*107.
321 = 3 x 107
No, 321 is composite. 3 x 107 precludes 321 from being prime on the basis that prime numbers may only consist of a factor of one and itself.
Any multiple of 3 will not be relatively prime to 9 because they will both have 3 as a common factor. Some of these numbers are 3, 6, 12, 39, 102, and 372.
No, it is not.
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, they are not relatively prime.
It can be. 34 is relatively prime to 35. 34 is not relatively prime to 40.