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 646, 420 i.e. 2 largest integer that divides all the numbers equally.
Greatest common factor (GCF) of 646, 420 is 2.
GCF(646, 420) = 2
Greatest common factor or Greatest common divisor (GCD) can be calculated in two ways
2 | 646, 420 |
323, 210 |
∴ So the GCF of the given numbers is 2 = 2
Factors of 646
List of positive integer factors of 646 that divides 646 without a remainder.
1,2,17,19,34,38,323,646
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
Greatest Common Factor
We found the factors 646,420 . The biggest common factor number is the GCF number.
So the greatest common factor 646,420 is 2.
Here are some samples of GCF of two or more Numbers calculations.
1. What is the GCF of 646, 420?
Answer: GCF of 646, 420 is 2.
2. How to Find the GCF of 646, 420
Answer: Greatest Common Factor(GCF) of 646, 420 = 2
Step 1: Divide all the numbers with common prime numbers having remainder zero.
Step 2: Then multiply all the prime factors GCF(646, 420) = 2.