Q: What is the common factor of 21 56 84 140?

Write your answer...

Submit

Still have questions?

Continue Learning about Algebra

Factors of 21: 1, 3, 7, 21.Factors of 35: 1, 5, 7, 35.Factors of 56: 1, 2, 4, 7, 8, 14, 28, 56.GCF (21, 35, 56) = 7

168

The Greatest Common Factor of 42, 56, 98: 14

The GCF is 8.

28 and 56 have a GCF of 28.

Related questions

The GCF is 7.

The greatest common factor of 21 and 56 is 7.

The greatest, (Highest) Common Factor of 21 and 56 is 7

The factors of 42 are 1, 2, 3, 6, 7, 14, 21, and 42.The factors of 56 are 1, 2, 4, 7, 8, 14, 28, and 56.The factors of 140 are 1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, and 140.The common factors of 42, 56, and 140 are 1, 2, 7, and 14. Therefore, the least common factor (the smallest common factor) is 1.The GCF is 14.

The GCF is 28.

7. 7x3=21 7x8=56

7

The GCF of 21, 56, and 70 is 7.

The Greatest Common Factor (GCF) is: 7

Find a common factor of 21 and 56 and divide both by that factor to give two new numbers. If necessary, repeat the process with a common factor of these two numbers and so on. This looping can be done in one step if you can find the greatest common factor. So, for 21 and 56, the GCF = 7 So 21/56 = (21/7) / (56/7) = 3/8

1 and 7

The GCF is 7.