0
Anonymous
231 ÷ 121 = 1 r 110
121 ÷ 110 = 1 r 10
110 ÷ 10 = 11 r 0
gcf of 121 and 231 is 11.
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The GCF is 121.
The GCF is 33.
The GCF is 21.
The GCF of 180 and 231 is 3.
The gcf is 121.