GCF for 20 and 875

What is the Greatest Common Factor of 20 and 875?

Answer: GCF of 20 and 875 is 5

(Five)

Finding GCF for 20 and 875 using all factors (divisors) listing

The first method to find GCF for numbers 20 and 875 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 875: 1, 5, 7, 25, 35, 125, 175, 875

So the Greatest Common Factor for 20 and 875 is 5

Finding GCF for 20 and 875 by Prime Factorization

The second method to find GCF for numbers 20 and 875 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 875: 5, 5, 5, 7

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 20 and 875

GCF Table

Number 1Number 2GCF
58755
68751
78757
88751
98751
108755
118751
128751
138751
148757
158755
168751
178751
188751
198751
208755
218757
228751
238751
248751
2587525
268751
278751
288757
298751
308755
318751
328751
338751
348751

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 20 and 875? (The answer is: 5). Select the first number (e.g. '20') and the second number (e.g. '875'). 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 20 and 875?

GCF of 20 and 875 is 5