GCF for 80 and 555

What is the Greatest Common Factor of 80 and 555?

Answer: GCF of 80 and 555 is 5

(Five)

Finding GCF for 80 and 555 using all factors (divisors) listing

The first method to find GCF for numbers 80 and 555 is to list all factors for both numbers and pick the highest common one:

All factors of 80: 1, 2, 4, 5, 8, 10, 16, 20, 40, 80

All factors of 555: 1, 3, 5, 15, 37, 111, 185, 555

So the Greatest Common Factor for 80 and 555 is 5

Finding GCF for 80 and 555 by Prime Factorization

The second method to find GCF for numbers 80 and 555 is to list all Prime Factors for both numbers and multiply the common ones:

All Prime Factors of 80: 2, 2, 2, 2, 5

All Prime Factors of 555: 3, 5, 37

As we can see there is only one Prime Factor common to both numbers. It is 5

So 5 is the Greatest Common Factor of 80 and 555

GCF Table

Number 1Number 2GCF
655555
665553
675551
685551
695553
705555
715551
725553
735551
7455537
7555515
765551
775551
785553
795551
805555
815553
825551
835551
845553
855555
865551
875553
885551
895551
9055515
915551
925551
935553
945551

About "Greatest Common Factor" Calculator

This calculator will help you find the greatest common factor (GCF) of two numbers. For example, it can help you find out what is the Greatest Common Factor of 80 and 555? (The answer is: 5). Select the first number (e.g. '80') and the second number (e.g. '555'). After that hit the 'Calculate' button.
Greatest Common Factor (GCF) also known as the Greatest Common Divisor (GCD) or Highest Common Factor (HCF) - it is the largest positive integer that divides each of the integers with zero remainder

FAQ

What is the Greatest Common Factor of 80 and 555?

GCF of 80 and 555 is 5