231
77,3
11,7,3
231 77,3 11,7,3
231 77,3 11,7,3
231 3, 77 3, 7, 11
231 / \ 77*3 / \ 11*7 231=11*7*3
231 77,3 11,7,3 285 95,3 19,5,3 111 3,37
234 117,2 39,3,2 13,3,3,2
The longest factor string you can make for 231 is 3x7x11.
The greatest common factor of 231 and 154 is 77.
Oh, dude, the highest common factor of 126 and 231 is 21. It's like the biggest number that can divide both 126 and 231 without leaving any remainder. So, yeah, 21 is the winner here.
231 / \ 3 77 / \ 7 11 / \ 11 1
The greatest common factor (GCF) of 121 and 231 is 11.
GCF(60, 231) = 3.