No, they are both divisible by 3.
no
No
The GCF is 33, which means they are not relatively prime.
No, 54 and 165 are not relatively prime.
Yes, they are relatively prime.
yes, they are relatively prime.
No, 144 and 165 are not relatively prime. For them to be relatively prime, the number 1 could be their only common factor, but they also have 3 as a common factor.
no 99 is divisible by 1 and 9
Yes.
1, 3, 9, 11, 33, 99 3 and 11 are prime. 1, 3, 5, 11, 15, 33, 55, 165 3, 5 and 11 are prime.
3 x 3 x 11 = 99 3 x 5 x 11 = 165
99 and 512 are relatively prime. They don't share any prime factors.