The factors of 84 are 1,2,3,4,6,7,12,14,21,28,42 and 84. To find a greatest common factor, you need to compare them to another number's factors.
28
Since 21 is a factor of 84, it is automatically the GCF and all of its factors are common.
The greatest common factor of the numbers 21 and 84 is 21.
The GCF of 12 and 84 is 12Method:One way to determine the common factors and greatest common factor is to find all the factors of the numbers and compare them.The factors of 12 are 1, 2, 3, 4, 6, and 12.The factors of 84 are 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, and 84.The common factors are 1, 2, 3, 4, 6, and 12. Therefore, the greatest common factor is 12.Since 12 is a factor of 84, it is automatically the GCF.
The GCF is 4.
It is: 7
12
The GCF is 12.
The common factors are: 1, 2, 3, 4, 6, 12 The Greatest Common Factor: 12
The greatest common factor of 77 and 84 is 7.
The common factors are: 1, 2, 3, 6.