The greatest common factor (GCF) of a set of numbers is the largest factor that all the numbers share. For example, 12, 20, and 24 have two common factors: 2 and 4. The largest is 4, so we say that the GCF of 12, 20, and 24 is 4.
What’s a common factor of 4?
Solution: The greatest number that divides 4 and 18 exactly is their greatest common factor, i.e. GCF of 4 and 18. ⇒ Factors of 4 and 18: Factors of 4 = 1, 2, 4.
What is the GCF of 4 and 12?
What is the GCF of 4 and 12? The GCF of 4 and 12 is 4.
What is the common factor of 15 and 25?
There are 2 common factors of 15 and 25, that are 1 and 5. Therefore, the greatest common factor of 15 and 25 is 5.
Is 4 a factor of 12 and why?
The factors of 12 are 1, 2, 3, 4, 6, and 12, because each of those divides 12 without leaving a remainder (or, alternatively, each of those is a counting number that can be multiplied by another counting number to make 12).
Which is the most common factor of 4?
The factors of 4 (all the whole numbers that can divide the number without a remainder) are 1, 2 and 4;
Which is the greatest factor of 4 and 10?
We found the factors and prime factorization of 4 and 10. The biggest common factor number is the GCF number. So the greatest common factor 4 and 10 is 2.
How to find the GCF of 4, 5 and 9?
The first step to find the gcf of 4, 5 and 9 is to list the factors of each number. The factors of 4 are 1, 2 and 4. The factors of 5 are 1 and 5. The factors of 9 are 1, 3 and 9. So, the Greatest Common Factor for these numbers is 1 because it divides all them without a remainder. Read more about Common Factors below.
Which is the greatest common factor of 5?
The factors of 5 are 1 and 5. So, the Greatest Common Factor for these numbers is 1 because it divides all them without a remainder. Read more about Common Factors below. The first step is to find all divisors of each number. For instance, let us find the gcf (3,4,5).
