What is the GCF of 6 and 18?
It's often useful in solving math problems to be able to find the largest factor that divides two numbers. We call this as Greatest Common Factor
Answer: GCF of 6 and 18 is 6
Two methods to find the GCF of 6 and 18 are explained below.
Methods to calculate GCF of 6 and 18
- Prime factorization Method
- Listing the common factors method
GCF of 6 and 18 by Prime Factorization
Let us represent 6 and 18 as a product of its prime numbers
Thus, the common factors of 6 and 18 are 2, 3
GCF is the product of the factors that are common to each of the given numbers.
GCF of 6 and 18 is 26
Method2: GCF of 6 and 18 by Listing the Common Factors
Let's find the factors of 6 and 18
Common Factors of 6 and 18: 1, 2, 3, 6
Thus, greatest common factor is 6
GCF of 6 and 18 is 6