Common factors of both numbers are 1 and 2
The common factors of 16 and 18 are: 1 and 2
The factors of 16 are: 1, 2, 4, 8, 16The factors of 18 are: 1, 2, 3, 6, 9, 18
The factors of 16 are 1, 2, 4, 8 and 16 the factors of 18 are 1, 2, 3, 6, 9 and 18 2
1,2,4,8,16 1,2,3,6,9,18
The common factors are: 1, 2
1 and 2.
The factors of 18 are: 1, 2, 3, 6, 9, 18. The factors of 32 are: 1, 2, 4, 8, 16, 32.
The factors of 18 are: 1, 2, 3, 6, 9, 18 The factors of 32 are: 1, 2, 4, 8, 16, 32
They are all factors of 18, but they are not all the factors of 18. Don't forget the number itself.
1 AND 2
2
The GCF is 2.