220, because that's the largest number that divides into both of the other two evenly with no remainder.
Since 220 is a factor of 660, it is automatically the GCF.
Least Common Multiple (LCM) for 165 220 is 660
220
220, 440, 660 and so on.
220, 440, 660 and so on.
The Greatest Common Factor (GCF) is: 60
220, 440, 660 and so on.
The greatest common factor of 315 and 660 is 15.
The GCF is 60.
The GCF is 165.
The GCF is 60.
The GCF is: 3