The factors of 28 are 1, 2, 4, 7, 14 and 28. For them to be common, they need to be compared to another set of factors.
Since 28 is a factor of 56, all of the factors of 28 are common to 56.
The common factors of 28 and 54 are: 1, 2
1, 2, 7 and 14 are the common factors of 28 and 42. Since all of the numbers are common factors, we will not be able to select two.
Common factors of 14 and 28 are: 1, 2, 7, and 14.
The factors of 28 are 1, 2, 4, 7, 14, 28. For them to be common, they need to be compared to another set of factors.
The common factors are: 1, 2, 4.
Since 14 is a factor of 28, all of its factors are common.
Since 14 is a factor of 28, all of its factors are common.
The common factors are: 1, 2, 7, 14.
The prime factors of 28 are 2,2 and 7 The prime factors of 42 are 2,3 and 7 Thus the common factors are 1,2,7 and 14.
Factors of 28... 1,2,4,7,14,28 Factors of 42... 1,2,3,6,7,14,21,42 GCF = 14
All multiples of 7 and 28 have.