GCF for 70 and 205

What is the Greatest Common Factor of 70 and 205?

Answer: GCF of 70 and 205 is 5

(Five)

Finding GCF for 70 and 205 using all factors (divisors) listing

The first method to find GCF for numbers 70 and 205 is to list all factors for both numbers and pick the highest common one:

All factors of 70: 1, 2, 5, 7, 10, 14, 35, 70

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

So the Greatest Common Factor for 70 and 205 is 5

Finding GCF for 70 and 205 by Prime Factorization

The second method to find GCF for numbers 70 and 205 is to list all Prime Factors for both numbers and multiply the common ones:

All Prime Factors of 70: 2, 5, 7

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 70 and 205

GCF Table

Number 1Number 2GCF
552055
562051
572051
582051
592051
602055
612051
622051
632051
642051
652055
662051
672051
682051
692051
702055
712051
722051
732051
742051
752055
762051
772051
782051
792051
802055
812051
8220541
832051
842051

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 70 and 205? (The answer is: 5). Select the first number (e.g. '70') 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

FAQ

What is the Greatest Common Factor of 70 and 205?

GCF of 70 and 205 is 5