231
/ \
77*3
/ \
11*7
231=11*7*3
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 11,7,3 285 95,3 19,5,3 111 3,37
The longest factor string you can make for 231 is 3x7x11.
The greatest common factor of 231 and 154 is 77.
231 / \ 3 77 / \ 7 11 / \ 11 1
The greatest common factor (GCF) of 121 and 231 is 11.
234 117,2 39,3,2 13,3,3,2
GCF(60, 231) = 3.
The GCF is 21.