Question

What are co-primes?how many co-primes can be formed from the set
(1,3,5,7,8,10)

Answer 1

hey mate ur answer is ...
Two numbers that have only one as the common factor is called co primes .
(1, 5,7,3)

Answer 2

Co-primes are pairs of numbers which have only one common factor. The common factor is 1.

from the set (1,3,5,7,8,10), the pair of co-primes are:

1 and 3
1 and 5
1 and 7
1 and 8
1 and 10
3 and 5
3 and 7
3 and 8
3 and 10
5 and 7
5 and 8
7 and 8
7 and 10

Pairs which are NOT co-primes are 5 and 10, 8 and 10.