The GCF is 4.
The Greatest Common Factor (GCF) of 20 and 36 is: 4
It is: 4
The GCF of 20, 24, and 36 is 4.
The GCF is 4.
The GCF is 2.
The GCF is 4.
It is: 4
The GCF is 4.
The GCF is 4.
The GCF is 4.
The GCF is 4a
The Greatest Common Factor (GCF) of 20, 28, and 36 is 4. The factors of 20 are 1, 2, 4, 5, and 10. Since ten is not a factor for either 28 or 36, we can remove it from consideration. Five, likewise, is not a factor for either 28 or 36, so it can be removed as well. This leaves four, which is the greatest common factor for all three numbers.