The Greatest Common Factor (GCF) of 210 and 140 is 70.
The GCF of 140, 168 and 210 is 14.
GCF(160, 210, 140) = 10 so the ratio is 16 : 21 : 14
The GCF is 70.
210 and 420 have a GCF of 210.
Since 210 is a factor of 420, it is automatically the GCF.
The GCF is 6.
The GCF is 1.
The GCF is 105.
The GCF is 6.
The GCF is 15.
The GCF is 14.