Find at least $10$ pairs of co-primes from the given numbers.
$12, 15, 27, 36, 17, 25, 32, 49, 111, 121, 13$ .

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Solution

Co-prime Numbers
Step $1$ : Definition of Co-prime Numbers:
Two numbers are said to be co-prime if they do not have any common factor other than $1$ .
Step $2$ : To find $10$ pairs of co-primes from the given numbers.
$10$ pairs of co-primes from the given numbers are:
$(12, 17) (12, 25) (12, 49) (12, 121) (12, 13) (13, 15) (15, 17) (15, 32) (15, 49) (15, 121)$

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