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Q: Are 50 and 65 relatively prime?

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No, they are not relatively prime.

It can be. 50 is relatively prime to 51.

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.

An easy way to find a number relatively prime to another number is to find a nearby prime number. For example, 53 is relatively prime with 50. The following pairs are relatively prime. 3, 50 19, 50 37, 50 49, 50 50, 69 50, 201 50, 341 Any number that is not divisible by 2 or 5 will be relatively prime to 50.

Yes, they are relatively prime.

Yes.

yes

Yes. hcf(65, 112) = 1.

The GCF of 26 and 65 is 13. 13 is a prime number. "Relatively prime" refers to numbers whose GCF is 1.

No they are not.

No. To be relatively prime, the only common factor they could have would be the number 1. They also have 5 as a common factor, so they are not relatively prime.

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