1.

Meaning of co-prime

Answer» numbers which have no common factors other than 1e.g 21 and 22\xa0the factors of 21 are 1 , 3 , 7, 21the factors of 22 are 1 , 2, 11, 22only 1 is common factor among themthus 21 and 22 are coprime\xa0But 21 and 24 are not coprime as the factors of 24 are 1 , 2, 3, 4, 6, 8 , 12 , 24the common factors are 1 AND 3
The number having factor 1


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