GCF for 25 and 205

"Greatest Common Factor" Calculator

Greatest Common Factor of

and

What is the Greatest common Divisor of 25 and 205?

Answer: GCF of 25 and 205 is 5

(Five)

Finding GCF for 25 and 205 using all factors (divisors) listing

The first method to find GCF for numbers 25 and 205 is to list all factors for both numbers and pick the highest common one:

All factors of 25: 1, 5, 25

All factors of 205: 1, 5, 41, 205

So the Greatest Common Factor for 25 and 205 is 5

Finding GCF for 25 and 205 by Prime Factorization

The second method to find GCF for numbers 25 and 205 is to list all Prime Factors for both numbers and multiply the common ones:

All Prime Factors of 25: 5, 5

All Prime Factors of 205: 5, 41

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 25 and 205

See Also

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 25 and 205? (The answer is: 5). Select the first number (e.g. '25') and the second number (e.g. '205'). 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
102055
112051
122051
132051
142051
152055
162051
172051
182051
192051
202055
212051
222051
232051
242051
252055
262051
272051
282051
292051
302055
312051
322051
332051
342051
352055
362051
372051
382051
392051

FAQ

What is the Greatest common Divisor of 25 and 205?

GCF of 25 and 205 is 5

See Also