For 231, 147 the LCM is: 1,617
The GCF is 77.
The GCF is 21.
The GCF is 33.
The GCF of 242, 231 is 11.
The GCF of 60 and 231 is 3
The GCF of 180 and 231 is 3.
The GCF is 3.
The GCF is 7.
The GCF is 1.
The GCF is 147.
Prime factors of 189 are 33 and 7Prime factors of 231 are 3, 7, and 11HCF of 189 and 231 is 7