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.
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No. To be relatively prime, numbers have to have a GCF of 1. Numbers ending in 5 are divisible by 5.
1, 10, 14, 35, 70
They are respectively:-2*5 = 105*7 = 452*7 = 14
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.