The greatest common factor of both numers is 7
It is: 1
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
The Factors of 24 are 1,2,3,4,6,8,12, & 24The factors of 84 are 1,2,3,4,6,7,12,14,21,28,42, & 84So the answer is 12
The g. c. f. of 21 and 84 is 21.
Since 21 is a factor of 84, it is automatically the GCF.
The GCF is 4.
12
It is: 7
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.
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.