Greatest Common Factor of 687, 6420

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023


GCF of two or more numbers Calculator allows you to quickly calculate the GCF of 687, 6420 i.e. 3 largest integer that divides all the numbers equally.

Greatest common factor (GCF) of 687, 6420 is 3.

GCF(687, 6420) = 3

GCF of 687, 6420

Greatest common factor or Greatest common divisor (GCD) can be calculated in two ways

GCF of:

Greatest Common Factor of 687,6420

GCF of 687,6420 is 3

3 687, 6420
229, 2140

∴ So the GCF of the given numbers is 3 = 3

Greatest Common Factor (GCF) By Matching Biggest Common Factor Method

Factors of 687

List of positive integer factors of 687 that divides 687 without a remainder.

1,3,229,687

Factors of 6420

List of positive integer factors of 6420 that divides 6420 without a remainder.

1,2,3,4,5,6,10,12,15,20,30,60,107,214,321,428,535,642,1070,1284,1605,2140,3210,6420

Greatest Common Factor

We found the factors 687,6420 . The biggest common factor number is the GCF number.
So the greatest common factor 687,6420 is 3.

GCF of two or more Numbers Calculation Examples

Here are some samples of GCF of two or more Numbers calculations.

Frequently Asked Questions on GCF of 687, 6420

1. What is the GCF of 687, 6420?

Answer: GCF of 687, 6420 is 3.

2. How to Find the GCF of 687, 6420

Answer: Greatest Common Factor(GCF) of 687, 6420 = 3

Step 1: Divide all the numbers with common prime numbers having remainder zero.

Step 2: Then multiply all the prime factors GCF(687, 6420) = 3.