GCF for 20 and 295

What is the Greatest Common Factor of 20 and 295?

Answer: GCF of 20 and 295 is 5

(Five)

Finding GCF for 20 and 295 using all factors (divisors) listing

The first method to find GCF for numbers 20 and 295 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 295: 1, 5, 59, 295

So the Greatest Common Factor for 20 and 295 is 5

Finding GCF for 20 and 295 by Prime Factorization

The second method to find GCF for numbers 20 and 295 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 295: 5, 59

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 295

GCF Table

Number 1Number 2GCF
52955
62951
72951
82951
92951
102955
112951
122951
132951
142951
152955
162951
172951
182951
192951
202955
212951
222951
232951
242951
252955
262951
272951
282951
292951
302955
312951
322951
332951
342951

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 295? (The answer is: 5). Select the first number (e.g. '20') and the second number (e.g. '295'). 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 295?

GCF of 20 and 295 is 5