1 and 7.
The factors of 21 are: 1, 3, 7, 21.The factors of 84 are: 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84.The common factors are: 1, 3, 7, 21
21 and 28 have 7 as a factor.
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
Those are the factors of 28. For them to be common, they need to be compared to another set of factors.
The factors of 14 are 1,2,7, and 14. The factors is 21 up to 14 and 1, 3, and 7. The common factors are 1 and 7.
The GCF of 14 and 21 is 7. The factors of 14 are: 1, 2, 7, 14 The factors of 21 are: 1, 3, 7, 21 The common factors are: 1, 7.
The factors of 14 are: 1, 2, 7, 14.The factors of 21 are: 1, 3, 7, 21.The Greatest Common Factor (GCF) is: 7.
The factors of 14 and 21 are: 14: 1,2,7,14 21:1,3,7,21 The common factors are:1 and 7. Therefore 7 is the greatest common factor (GCF)
The factors of 14 are:1, 2, 7, 14The factors of 21 are:1, 3, 7, 21The factors of 28 are:1, 2, 4, 7, 14, 28The common factors are:1, 7
The factors of 14 are: 1, 2, 7, 14The factors of 21 are: 1, 3, 7, 21The factors of 49 are: 1, 7, 49The common factors are: 1, 7
1 and 7.
Common Factors: 2, 7 Greatest Common Factor: 7 * * * * * 2 is NOT a factor of 21 and so it cannot be a common factor.
There are not common factors of 14. Common factors are factors that it and another number share - factors they have in common. A single number cannot have common factors. 14 does have factors. Its factors are 1, 2, 7, and 14. 14 and 16 have common factors of 1 and 2. 14 and 21 have common factors of 1 and 7. 14 and 31 have a common factor of 1 only, which means they are relatively prime. 14 and 70 have common factors of 1, 2, 7, and 14.
The factors of 21 are: 1, 3, 7, 21.The factors of 84 are: 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84.The common factors are: 1, 3, 7, 21
The factors of 21 are: 1, 3, 7, 21The factors of 28 are: 1, 2, 4, 7, 14, 28The common factors are: 1, 7
21 and 28 have 7 as a factor.