What is the Greatest Common Factor?
- Factors for 6: 1, 2, 3, and 6.
- Factors for 12: 1, 2, 3, 4, 6, and 12.
- Factors for 20: 1, 2, 4, 5, 10, and 20.
What are the common factors of 6 and 21?
GCF of 6 and 21 is the largest possible number that divides 6 and 21 exactly without any remainder. The factors of 6 and 21 are 1, 2, 3, 6 and 1, 3, 7, 21 respectively. There are 3 commonly used methods to find the GCF of 6 and 21 – long division, Euclidean algorithm, and prime factorization.
What factors do 12 and 21 have in common?
What is the GCF of 12 and 21
- The factors of 12 are 12, 6, 4, 3, 2, 1.
- The factors of 21 are 21, 7, 3, 1.
- The common factors of 12 and 21 are 3, 1, intersecting the two sets above.
- In the intersection factors of 12 ∩ factors of 21 the greatest element is 3.
- Therefore, the greatest common factor of 12 and 21 is 3.
What are the factors of 6 and 12?
The factors of 12 are 1, 2, 3, 4, 6 and 12. Hence, the common factors of 6 and 12 are 1, 2, 3 and 6. Stay tuned with BYJU’S to know about factor 6 and the factors and prime factors of other numbers.
Are there any factors other than 1 and 6?
As 6 is an even composite number, it has many factors other than 1 and 6. Thus, the factors of 6 are 1, 2, 3 and 6. Similarly, the negative pair factors of 6 are -1, -2, -3 and -6. Factors of 6: 1, 2, 3 and 6.
Which is the most common factor of 12?
The factors of 12 include: 1, 2, 3, 4, 6, and 12. Thus, the common factors of 16 and 12 are: 1, 2, and 4. Often in math problems, it can be desirable to find the greatest common factor of some given numbers. In this case, the greatest common factor is 4.
Which is the greatest common factor of 6 and 21?
The biggest common factor number is the GCF number. So the greatest common factor 6 and 21 is 3. Also check out the Least Common Multiple of 6 and 21
