Yes, as their only common factor is 1.
It can be. 21 is relatively prime with 32.
No, 100 and 202 are not relatively prime. Relatively prime numbers only have the number 1 as a common factor. The number 1 is a common factor for them, but the number 2 is another common factor that they have, so they are not relatively prime.
7 is.
209 is relatively prime (as is 211).
27 is not a prime number and i dont know about 117 but i dont think its a composite # * * * * * The person who gave the above answer has no understanding of "relative primes". Or primes, for that matter. Neither 8 nor 9 is a prime BUT 8 and 9 are relatively prime (or co-prime) because they have no factor in common. That is what relatively prime means. 117 is not a prime, even if the previous answerer thinks otherwise. 27 and 117 are not relatively prime because both are divisible by 3.
No, they are not relatively prime.
No, they are not relatively prime.
No, they are not.
No
No. Even numbers can't be relatively prime to each other.
Yes. hcf(65, 112) = 1.
75 and 112
The short answer is yes, 75 and 112 are relatively prime. The long answer is that any two numbers are considered to be relatively prime if they have no common factors other than 1. The prime factors of 75 are 3, 5, 5 since 3 x 5 x 5 = 75. The prime factors of 112 are 2, 2, 2, 2, 7 since 2 x 2 x 2 x 2 x 7 = 112. As you can see, there are no numbers in common in these lists of factors. Knowing this test, you can now determine for yourself if any set of numbers is relatively prime.
75,112
The proper prime factors of 275 are 5,5,11.
The prime factorization of 275 is 5x5x11.
The prime factors of 112 are: 2 and 7