GCF for 80 and 425

What is the Greatest Common Factor of 80 and 425?

Answer: GCF of 80 and 425 is 5

(Five)

Finding GCF for 80 and 425 using all factors (divisors) listing

The first method to find GCF for numbers 80 and 425 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 425: 1, 5, 17, 25, 85, 425

So the Greatest Common Factor for 80 and 425 is 5

Finding GCF for 80 and 425 by Prime Factorization

The second method to find GCF for numbers 80 and 425 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 425: 5, 5, 17

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 425

GCF Table

Number 1Number 2GCF
654255
664251
674251
6842517
694251
704255
714251
724251
734251
744251
7542525
764251
774251
784251
794251
804255
814251
824251
834251
844251
8542585
864251
874251
884251
894251
904255
914251
924251
934251
944251

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 425? (The answer is: 5). Select the first number (e.g. '80') and the second number (e.g. '425'). 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 425?

GCF of 80 and 425 is 5