GCF for 70 and 275

What is the Greatest common Divisor of 70 and 275?

Answer: GCF of 70 and 275 is 5

(Five)

Finding GCF for 70 and 275 using all factors (divisors) listing

The first method to find GCF for numbers 70 and 275 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 275: 1, 5, 11, 25, 55, 275

So the Greatest Common Factor for 70 and 275 is 5

Finding GCF for 70 and 275 by Prime Factorization

The second method to find GCF for numbers 70 and 275 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 275: 5, 5, 11

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 275

Related Calculations

GCF Table

Number 1Number 2GCF
5527555
562751
572751
582751
592751
602755
612751
622751
632751
642751
652755
6627511
672751
682751
692751
702755
712751
722751
732751
742751
7527525
762751
7727511
782751
792751
802755
812751
822751
832751
842751

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 70 and 275? (The answer is: 5). Select the first number (e.g. '70') and the second number (e.g. '275'). 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 Divisor of 70 and 275?

GCF of 70 and 275 is 5