Yes because they only have one number in common which is one.
No, they are not relatively prime.
180 and 231 are not relatively prime.
Yes, 143 and 63 are relatively prime because they have no prime factors in common.
No.
No.
No, they are not.
Yes
No
Prime factorization:143 = 11 x 13231 = 3 x 7 x 1111 x 13 x 3 x 7 = 3003 (the LCM of 143 and 231).
Yes.
No, they are not relatively prime. They have 3 as a common divisor.No.180 & 231 have a common factor of 3.