The GCF 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.
The GCF is 6.
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 70.
The GCF is 42.
The GCF is 15.
The GCF is 14.