It can be. 40 is relatively prime to 41. 40 is not relatively prime to 54.
Well yes they are relativley prime numbers.
No.
No.
No.
Yes, they are.
no.
No.
209, 211 and any prime number.
4 and 9
Positive integers are considered relatively prime when their GCF is 1, that is, when they have no common prime factors.
Their high common factor is 1
No. To be relatively prime, numbers have to have a GCF of 1. Numbers ending in 5 are divisible by 5.