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 420, 6640 i.e. 20 largest integer that divides all the numbers equally.
Greatest common factor (GCF) of 420, 6640 is 20.
GCF(420, 6640) = 20
Greatest common factor or Greatest common divisor (GCD) can be calculated in two ways
2 | 420, 6640 |
2 | 210, 3320 |
5 | 105, 1660 |
21, 332 |
∴ So the GCF of the given numbers is 2 x 2 x 5 = 20
Factors of 420
List of positive integer factors of 420 that divides 420 without a remainder.
1,2,3,4,5,6,7,10,12,14,15,20,21,28,30,35,42,60,70,84,105,140,210,420
Factors of 6640
List of positive integer factors of 6640 that divides 6640 without a remainder.
1,2,4,5,8,10,16,20,40,80,83,166,332,415,664,830,1328,1660,3320,6640
Greatest Common Factor
We found the factors 420,6640 . The biggest common factor number is the GCF number.
So the greatest common factor 420,6640 is 20.
Here are some samples of GCF of two or more Numbers calculations.
1. What is the GCF of 420, 6640?
Answer: GCF of 420, 6640 is 20.
2. How to Find the GCF of 420, 6640
Answer: Greatest Common Factor(GCF) of 420, 6640 = 20
Step 1: Divide all the numbers with common prime numbers having remainder zero.
Step 2: Then multiply all the prime factors GCF(420, 6640) = 20.