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Q: Are 30 and 135 relatively prime?

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The gcf is 15; so 30 and 135 are not relatively prime. 30 = 2 x 3 x 5 135 = 33 x 5 hcf = 3 x 5 = 15 If the gcf of two numbers is 1, then they are relatively prime 15 ≠ 1, thus 30 and 135 are not relatively prime.

no, they both have 5 as factors

No. 15 is a common factor

No, they are not relatively prime.

Yes, they are relatively prime.

No, because 5 divides both 40 and 135.

No, 30 and 36 are not relatively prime. They share the factors 3 and 6.

No, 30 and 40 are not relatively prime. Their greatest common factor is 10.

No. Even numbers can't be relatively prime.

12 and 30 are not relatively prime because they have two common prime factors (2 and 3).

30 and 135 both are composite numbers. 30 and 135 both are divided by 5 and 3.

No!

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