What Numbers Go Into 21 And 25

For the question "What Numbers Go Into 21 and 25" is the same as Greatest Common Factor (GCF, HCF, GCD) of 21 And 25 numbers.

Greatest Common Factor Of 21 And 25

The gcf of 21 and 25 is the largest positive integer that divides the numbers 21 and 25 without a remainder. Let's find the factors.

Finding The Factors Of 21 And 25

List out all of the prime factors for each number:

Factors Of 21

1 , 3 , 7 , 21

Factors Of 25

1 , 5 , 25

The greatest common factor of 21 and 25 is 1 .

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)