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 640, 3980 i.e. 20 largest integer that divides all the numbers equally.
Greatest common factor (GCF) of 640, 3980 is 20.
GCF(640, 3980) = 20
Greatest common factor or Greatest common divisor (GCD) can be calculated in two ways
2 | 640, 3980 |
2 | 320, 1990 |
5 | 160, 995 |
32, 199 |
∴ So the GCF of the given numbers is 2 x 2 x 5 = 20
Factors of 640
List of positive integer factors of 640 that divides 640 without a remainder.
1,2,4,5,8,10,16,20,32,40,64,80,128,160,320,640
Factors of 3980
List of positive integer factors of 3980 that divides 3980 without a remainder.
1,2,4,5,10,20,199,398,796,995,1990,3980
Greatest Common Factor
We found the factors 640,3980 . The biggest common factor number is the GCF number.
So the greatest common factor 640,3980 is 20.
Here are some samples of GCF of two or more Numbers calculations.
1. What is the GCF of 640, 3980?
Answer: GCF of 640, 3980 is 20.
2. How to Find the GCF of 640, 3980
Answer: Greatest Common Factor(GCF) of 640, 3980 = 20
Step 1: Divide all the numbers with common prime numbers having remainder zero.
Step 2: Then multiply all the prime factors GCF(640, 3980) = 20.