Yes.
No, they are not relatively prime.
Yes, 25 and 65 are relatively prime because their greatest common divisor (GCD) is 1. The prime factorization of 25 is (5^2), and for 65, it is (5 \times 13). Since they share a common factor of 5, they are not relatively prime.
no
No.
Yes.
No, 50 and 65 are not relatively prime.
No, they are not relatively prime.
No, they are not relatively prime.
It can be. 21 is relatively prime with 32.
No.
Yes, they are relatively prime.
Yes, 25 and 65 are relatively prime because their greatest common divisor (GCD) is 1. The prime factorization of 25 is (5^2), and for 65, it is (5 \times 13). Since they share a common factor of 5, they are not relatively prime.
yes
No, 65 and 70 are not relatively prime. Relatively prime numbers only have the number 1 as a common factor. 65 and 70 also have 5 as a common factor, so they are not relatively prime.
no
153
No.