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what is the greatest common factor of 42, 60 and 78?
oa) 2
ob) 6
oc) 12
od 24

The greatest common factor of 42, 60 and 78 is  6.

Step-by-step explanation:

The given numbers are : 42, 60 and 78

On Prime Factorization of the given terms, we get:

42 = 2 x 3 x 7

60 = 2 x 2 x 3 x 5

78  = 2 x 3 x 13

The common factors to all these three terms is   2 x 3  = 6

Hence, the greatest common factor of 42, 60 and 78 is  6.

triangle and cube

step-by-step explanation: