What is The GCF of 9 and 15
Greatest Common Factor of two or more numbers is the largest possible number which divides the given numbers exactly without any remainder.
Answer: GCF of 9 and 15 is 3
We can find the GCF by the following methods
GCF of 9 and 15 by Prime Factorization
Here we represent 9 and 15 as a product of its prime numbers
Prime factorization of 9 is 3 × 3
Prime factorization of 15 is 3 × 5
The product of the factors that are common to each of the given numbers gives us the GCF.
GCF of 9 and 15 by Long Division
Step 1: Divide 15 by 9 and check the remainder.
Step 2: Taking the remainder of the above step as the divisor and the divisor of the above step as the dividend, perform the long division again.
Step 3: Continue until the remainder becomes 0