1,2,4,7,14,28
Since 14 is a factor of 28, all of its factors are common.
7,2,2 14,2 28
Multiples of 28
The greatest common factor of 14, 28, and 70 is 14.
7,2,2 14,2 28
Since 28 is a factor of 56, all of the factors of 28 are common to 56.
1, 2, 4, 7, 14, 28
to find the factor pair one has to know the factors of 28 the factors of 28 are 1,2,4,7,14,28 now pair up 1 and 28 is a factor pair because 1x28=28 2 and 14 is a pair because 2x14=28 7 and 4 is a pair because 7x4=28
1, 28 2, 14 4, 7
Since 14 is a factor of 28, all of its factors are common.
They're looking for factor pairs. (28,1)(14,2)(7,4)
4 is a factor of 28. 4 is a common factor of 28 and 32.