The factors of 315 are:
1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315
The factors of 378 are:
1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378
The common factors are:
1, 3, 7, 9, 21, 63
The Greatest Common Factor (GCF) is:
63
315 = 32 x 5 x 7525 = 3 x 5 x 73 x 5 x 7 = 105 (GCF)
The greatest common factor of 315 and 225 is 45.
The GCF is 63.
The GCF is 35.
The GCF is 42.
The GCF is 18.
The GCF is 126.
The GCF is 21.
The GCF is 45.
The GCF is 63.
The GCF is 315.
The GCF is 105.
The GCF is 35.
The GCF is 63.
The GCF of 315 and 60 is 15.
315 = 32 x 5 x 7525 = 3 x 5 x 73 x 5 x 7 = 105 (GCF)
The GCF is 54.