Question

which of the following is not a co prime
3 and 4 ;
2 and 5 ;
6 and 2 ;
7 and 4 .​

Answer 1

Correct Answer :- 6 and 2 .

CO - PRIME :- THESE ARE THOSE NUMBERS WHOSE HIGHEST COMMON FACTOR IS 1 .

AND IN ALL CASES HIGHEST COMMON FACTOR OF 3,4 AND 2,5 AND 7,4 IS 1 AND THAT OF 2, 6 IS 2 . THEREFORE, CORRECT ANSWER IS 6,2 .