Divide each number successively by all whole numbers until you can get any more whole numbers.
factors of 28 - 1, 2, 4, 7, 14,28
factors of 32 - 1, 2, 4, 8, 16, 32
Common factors of 24, 28, and 32 are: 1, 2, and 4.
The common factors are: 1, 2, 4
There are three. The factors of 28 are 1, 2, 4, 7, 14, and 28. The factors of 32 are 1, 2, 4, 8, 16, and 32. The common factors of 28 and 32 are 1, 2, and 4. 1, 2, & 4 1, 2 and 4
The numbers that go into both 28 and 32 are their common factors. The factors of 28 are 1, 2, 4, 7, 14, and 28, while the factors of 32 are 1, 2, 4, 8, 16, and 32. The common factors are 1, 2, and 4. Thus, 1, 2, and 4 go into both 28 and 32.
Factors are numbers you can multiply together to get another number. 28: 1, 2, 4, 7, 14, 28 32: 1, 2, 4, 8, 16, 32 28 and 32 have 3 common factors: 1, 2 and 4.
4
4
Just 1.
The GCF of 28 and 32 is 4.The factors of 32 are 1, 2, 4, 8, 16, and 32.The factors of 28 are 1, 2, 4, 7, 14, and 28.The largest factor they have in common is 4, so it is the greatest common factor of 32 and 28.Alternately, you can examine their prime factors.The prime factors of 32 are 2, 2, 2, 2, and 2.The prime factors of 28 are 2, 2, and 7.The prime factors they have in common are 2 and 2, so the greatest common factor is 2 x 2 = 4.It is 4
The GCF is 4.
Factors of 16: 1, 2, 4, 8, 16 Factors of 28: 1, 2, 4, 7, 14, 28 Factors of 32: 1, 2, 4, 8, 16, 32 GCF (16, 28, 32) = 4
List the factors. 1, 2, 4, 7, 14, 28 1, 2, 4, 8, 16, 32 Select the factors on both lists. 1, 2 and 4 are the common factors.