Question

Make 5 pairs of coprime numbers from 4,7,11,13,23,25,31,36,37,42,43,51

Answer 1

Answer:

(4, 51), (4, 43), (7, 43), (11, 13), (13, 23)

the coprimes are so called such that GCD of these numbers is 1.

Answer 2

(7,11)(11,13)(4,43)(4,51)(7,43)

hope it helps