Yes. 11 is a prime number, and it is a factor of 121. Actually, it is the square root of 121, because 11 x 11 = 121, so it is the only factor of 121 besides 1 in addition to being a prime factor.
22 is not relatively prime
Well, isn't that just a happy little question! To write 121 as a product of prime numbers, we start by dividing it by the smallest prime number, which is 2. Since 121 is not divisible by 2, we move on to the next prime number, which is 3. After dividing 121 by 11, we get 11. And 11 is a prime number, so we have successfully written 121 as a product of prime numbers: 11 x 11. Happy little primes!
yes, they are relatively prime.
211 is a prime number, and is not a factor of 210, so yes, they are relatively prime.
Yes!
yes it is relatively prime
No, they are not relatively prime.
Yes, they are relatively prime.
They are both not prime
no
3.
Yes, 55 and 62 are relatively prime because they have no common factor greater than 1.
No.
No, their common factors are 1 and 11. As 1 is not their only common factor, then they are not relatively prime.
121, 169, 289
The greatest common factor of 21 and 121 is 1. (21 and 121 are relatively prime.)