Yes, 3 and 20 are relatively prime because they have no common factor greater than 1.
No, they are not relatively prime.
No, they are not relatively prime.
Yes, they are relatively prime.
yes, they are relatively prime.
No combinations of even numbers can be relatively prime.
If you don't include 20, 25 and 30, all of the numbers in that range are relatively prime to 25.
Yes, they are relatively prime.
No.
No, 57 and 96 are not relatively prime because they share a common factor of 3.
10=2*5 Any number that doesn't have a factor of 2 or 5 is relatively prime to 10. e.g. 3, 7, 11, and 21 are all relatively prime to 10. 2, 5, 15, 16, and 20 are not relatively prime since they share a factor or 2 or 5 (or both, which means they share a factor of 10, e.g. 20).
No. If they are even numbers and not 2, they are not prime. 20 is divisible by 1, 2, 4, 5, 20, and 20. 18 is divisible by 1, 2, 3, 6, 9, and 18.
no three is not a Prime number