Greatest Common Factor of 644, 6720
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 644, 6720 i.e. 28 largest integer that divides all the numbers equally.
Greatest common factor (GCF) of 644, 6720 is 28.
GCF(644, 6720) = 28
GCF of 644, 6720
Greatest common factor or Greatest common divisor (GCD) can be calculated in two ways
- Greatest Common Factor of 644, 6720 by common division method
- Greatest Common Factor of 644, 6720 with matching the biggest common factor
GCF of 644,6720 is 28
| 2 | 644, 6720 |
| 2 | 322, 3360 |
| 7 | 161, 1680 |
| 23, 240 |
∴ So the GCF of the given numbers is 2 x 2 x 7 = 28
Factors of 644
List of positive integer factors of 644 that divides 644 without a remainder.
1,2,4,7,14,23,28,46,92,161,322,644
Factors of 6720
List of positive integer factors of 6720 that divides 6720 without a remainder.
1,2,3,4,5,6,7,8,10,12,14,15,16,20,21,24,28,30,32,35,40,42,48,56,60,64,70,80,84,96,105,112,120,140,160,168,192,210,224,240,280,320,336,420,448,480,560,672,840,960,1120,1344,1680,2240,3360,6720
Greatest Common Factor
We found the factors 644,6720 . The biggest common factor number is the GCF number.
So the greatest common factor 644,6720 is 28.
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 644, 6720
1. What is the GCF of 644, 6720?
Answer: GCF of 644, 6720 is 28.
2. How to Find the GCF of 644, 6720
Answer: Greatest Common Factor(GCF) of 644, 6720 = 28
Step 1: Divide all the numbers with common prime numbers having remainder zero.
Step 2: Then multiply all the prime factors GCF(644, 6720) = 28.