20: 1, 2, 4, 5, 10, 20 36: 1, 2, 3, 4, 6, 9, 18, 36 The GCF is 4.
The GCF of 18 and 36 is 18.
The GCF is 18.
The GCF is 18.
It would be 18.
The GCF is 18.
The GCF is 6.
Factors of 10-1,2,5,10 18-1,2,3,6,9,18 36-1,2,3,4,6,9,12,36 the GCF is 2
The GCF is 18.
The GCF is 18.
The GCF is 18.
The GCF of 20 and 36 is 4. To find the greatest common factor, or GCF, you must first identify the factors for each number. For 20, its factors are 1, 2, 4, 5, 10, and 20. For 36, its factors are 1, 2, 3, 4, 9, 12, 18, and 36. 4 is the highest (or greatest) factor they have in common, so the GCF for 20 and 36 is 4.