Greatest Common Factor of 645, 2145

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 645, 2145 i.e. 15 largest integer that divides all the numbers equally.

Greatest common factor (GCF) of 645, 2145 is 15.

GCF(645, 2145) = 15

GCF of 645, 2145

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

GCF of:

Greatest Common Factor of 645,2145

GCF of 645,2145 is 15

3 645, 2145
5 215, 715
43, 143

∴ So the GCF of the given numbers is 3 x 5 = 15

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

Factors of 645

List of positive integer factors of 645 that divides 645 without a remainder.

1,3,5,15,43,129,215,645

Factors of 2145

List of positive integer factors of 2145 that divides 2145 without a remainder.

1,3,5,11,13,15,33,39,55,65,143,165,195,429,715,2145

Greatest Common Factor

We found the factors 645,2145 . The biggest common factor number is the GCF number.
So the greatest common factor 645,2145 is 15.

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 645, 2145

1. What is the GCF of 645, 2145?

Answer: GCF of 645, 2145 is 15.

2. How to Find the GCF of 645, 2145

Answer: Greatest Common Factor(GCF) of 645, 2145 = 15

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

Step 2: Then multiply all the prime factors GCF(645, 2145) = 15.