GCF for 80 and 440

What is the Greatest Common Factor of 80 and 440?

Answer: GCF of 80 and 440 is 40

(Forty)

Finding GCF for 80 and 440 using all factors (divisors) listing

The first method to find GCF for numbers 80 and 440 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 440: 1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440

So the Greatest Common Factor for 80 and 440 is 40

Finding GCF for 80 and 440 by Prime Factorization

The second method to find GCF for numbers 80 and 440 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 440: 2, 2, 2, 5, 11

As we can see there are Prime Factors common to both numbers: 2, 2, 2, 5

Now we need to multiply them to find GCF: 2 × 2 × 2 × 5 = 40

GCF Table

Number 1Number 2GCF
654405
6644022
674401
684404
694401
7044010
714401
724408
734401
744402
754405
764404
7744011
784402
794401
8044040
814401
824402
834401
844404
854405
864402
874401
8844088
894401
9044010
914401
924404
934401
944402

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 440? (The answer is: 40). Select the first number (e.g. '80') and the second number (e.g. '440'). 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 440?

GCF of 80 and 440 is 40