What Numbers Go Into 45 And 18

For the question "What Numbers Go Into 45 and 18" is the same as Greatest Common Factor (GCF, HCF, GCD) of 45 And 18 numbers.

Greatest Common Factor Of 45 And 18

The gcf of 45 and 18 is the largest positive integer that divides the numbers 45 and 18 without a remainder. Let's find the factors.

Finding The Factors Of 45 And 18

List out all of the prime factors for each number:

Factors Of 45

1 , 3 , 5 , 9 , 15 , 45

Factors Of 18

1 , 2 , 3 , 6 , 9 , 18

The greatest common factor of 45 and 18 is 9 .

What is the Greatest Common Factor?

Put simply, the GCF of a set of whole numbers is the largest positive integer (i.e whole number and not a decimal) that divides evenly into all of the numbers in the set. It's also commonly known as:

Greatest Common Denominator (GCD)
Highest Common Factor (HCF)
Greatest Common Divisor (GCD)