GCF for 40 and 50

What is the Greatest Common Factor of 40 and 50?

Answer: GCF of 40 and 50 is 10

(Ten)

Finding GCF for 40 and 50 using all factors (divisors) listing

The first method to find GCF for numbers 40 and 50 is to list all factors for both numbers and pick the highest common one:

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

All factors of 50: 1, 2, 5, 10, 25, 50

So the Greatest Common Factor for 40 and 50 is 10

Finding GCF for 40 and 50 by Prime Factorization

The second method to find GCF for numbers 40 and 50 is to list all Prime Factors for both numbers and multiply the common ones:

All Prime Factors of 40: 2, 2, 2, 5

All Prime Factors of 50: 2, 5, 5

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

Now we need to multiply them to find GCF: 2 Γ— 5 = 10

GCF Table

Number 1Number 2GCF
2550
26502
27501
28502
29501
3050
3150
3250
33501
34502
3550
3650
37501
38502
39501
4050
41501
4250
43501
44502
4550
46502
47501
4850
49501
505050
51501
52502
53501
54502

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 40 and 50? (The answer is: 10). Select the first number (e.g. '40') and the second number (e.g. '50'). 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 40 and 50?

GCF of 40 and 50 is 10