Question

check wheather 7 and 15 are co- prime or not​

Answer 1

7 and 15 are coprime if they have no common prime factors, that is, if their greatest (highest) common factor hcf,is 1.

Coprime numbers (7; 15)? Yes.

hcf, (7; 15) = 1.

Answer 2

Answer:

By the definition of coprime numbers, if the given set of numbers have 1 as an only common factor then the given set of numbers will be coprime numbers. Factors of 7 are 1 and 7. Factors of 15 are 1, 3, 5 and 15. .since there is only one common factor the given numbers are co-prime.