GCF for 20 and 50

"Greatest Common Factor" Calculator

Greatest Common Factor of

and

What is the Greatest common Divisor of 20 and 50?

Answer: GCF of 20 and 50 is 10

(Ten)

Finding GCF for 20 and 50 using all factors (divisors) listing

The first method to find GCF for numbers 20 and 50 is to list all factors for both numbers and pick the highest common one:

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

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

So the Greatest Common Factor for 20 and 50 is 10

Finding GCF for 20 and 50 by Prime Factorization

The second method to find GCF for numbers 20 and 50 is to list all Prime Factors for both numbers and multiply the common ones:

All Prime Factors of 20: 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 × 5 = 10

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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 Divisor of 20 and 50? (The answer is: 10). Select the first number (e.g. '20') 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

"Greatest Common Factor" Calculator

Greatest Common Factor of

and

GCF Table

Number 1Number 2GCF
5505
6502
7501
8502
9501
105010
11501
12502
13501
14502
15505
16502
17501
18502
19501
205010
21501
22502
23501
24502
255025
26502
27501
28502
29501
305010
31501
32502
33501
34502

FAQ

What is the Greatest common Divisor of 20 and 50?

GCF of 20 and 50 is 10

See Also