How do you find the greatest common factor of 77, 66?

1 Answer
sjc
Nov 9, 2016

GCF(66,77)=11

Explanation:

factors 77: {1,7,11,77}

factors 66:{1,2,3,6,11,22,33,66}

common factors {1,7,11,77}∩{1,2,3,6,11,22,33,66}

CF{1,11}

GCF(66,77)=11

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