The common factors of 21 and 63 are 1, 3, 7, and 21
The common factors of 21 and 63 are: 1, 3, 7, and 21
The common factors of 21 and 63 are: 1, 3, 7, and 21.
Since 21 is a factor of 84, all of its factors are common.
The factors of 21: 1, 3, 7, 21.
The common factors of 6, 21, and 39 are 1 and 3
1, 3, 7, and 21 are all common factors of 21 and 42.
Since 21 is a factor of 84, it is automatically the GCF and all of its factors are common.
The factors of 21 are: 1, 3, 7, 21.The factors of 42 are: 1, 2, 3, 6, 7, 14, 21, 42.The common factors are: 1, 3, 7, 21
The common factors of 12 and 21 are 1 and 3. 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 21 are 1, 3, 7, and 21. The common factors are 1 and 3. This means that the greatest common factor is 3. The numbers are 1 and 3
The common factors of 21 and 51 are: 1 and 3
The GCF is 21.