What Numbers Go Into 78 And 80

For the question "What Numbers Go Into 78 and 80" is the same as Greatest Common Factor (GCF, HCF, GCD) of 78 And 80 numbers.

Greatest Common Factor Of 78 And 80

The gcf of 78 and 80 is the largest positive integer that divides the numbers 78 and 80 without a remainder. Let's find the factors.

Finding The Factors Of 78 And 80

List out all of the prime factors for each number:

Factors Of 78

1 , 2 , 3 , 6 , 13 , 26 , 39 , 78

Factors Of 80

1 , 2 , 4 , 5 , 8 , 10 , 16 , 20 , 40 , 80

The greatest common factor of 78 and 80 is 2 .

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)