0
What are the common factors and hreatest common factor of 21 and 39?
Wiki User
∙ 12y ago
1 and 3, the GCF.
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
What is the common factor for 6 and 21?
6 factors into [2 3] 21 factors into [3 7] Common factor is [3]◄
What is the greatest common factor of 4 14 6 and 21?
As 4 & 21 have no factors in common, gcf=1
Greatest common factors for 21 and 56?
The Greatest Common Factor (GCF) is: 7
What is th gratest common factor of 42 and 105?
42 prime factors -----> 2,3,7 105 prime factors -----> 3,5,7 There is 3 and 7 in common : There fore 3*7 = 21; 21 is the greatest common factor.
What are the most common factors of 21 and 24?
The only commom factor of 21 and 24 (apart from 1 which is a common factor of any set of numbers) is 3.
What are the common factors and greatest common factor of 21 and 42?
The common factors of 21 and 42 are 3, 7 and 21. The greatest common factor (GCF) is 21.
What are the common factors and greatest common factor of 21 and 84?
Since 21 is a factor of 84, it is automatically the GCF and all of its factors are common.
Common factors of 14 and 21?
Common Factors: 2, 7 Greatest Common Factor: 7 * * * * * 2 is NOT a factor of 21 and so it cannot be a common factor.
What is the common factor for 6 and 21?
6 factors into [2 3] 21 factors into [3 7] Common factor is [3]◄
What are common factors of 21 and 84?
Since 21 is a factor of 84, all of its factors are common.
What are the common factors and greatest common factor of 21?
There is neither a greatest common factor nor common factors of a single number, such as 21, because there cannot be any form of common factor without two or more numbers to compare. Common factors are factors that the numbers being compared have in common. The greatest common factor is the largest factor that all the numbers being compared have in common. Thus, since there are not two or more numbers to compare, there are neither common factors nor a greatest common factor. The factors of 21 are 1, 3, 7, and 21.
What are the common factors of 21 and 63?
The common factors of 21 and 63 are 1, 3, 7, and 21
What are the common factors of 14 and 21?
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)
What is the least common factor of 12 and 21?
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. Therefore, the least common factor (the smallest common factor) is 1.
What number is a common factor of 21 and 42?
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
What are the common factor for 21?
The factors of 21 are 1, 3, 7, 21 For them to be common, they need to be compared to another set of factors.
What is the common factor of 21?
The factors of 21 are 1, 3, 7 and 21. For them to be common, they need to be compared to another set of factors.
