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
75 and 112
No, they are not relatively prime.
No, they are not relatively prime.
No, they are not.
No, 75 and 625 are not relatively prime. No pair of numbers that both end in 5 can be relatively prime.
No, there is no common divisor between 285 and 75. Therefore, they are relatively prime.
No
No. Even numbers can't be relatively prime to each other.
Yes. hcf(65, 112) = 1.
Both composite 75 is divisible by 5 112 is divisible by 2 ... and other numbers
No.