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 840, 420 i.e. 420 largest integer that divides all the numbers equally.
Greatest common factor (GCF) of 840, 420 is 420.
GCF(840, 420) = 420
Greatest common factor or Greatest common divisor (GCD) can be calculated in two ways
2 | 840, 420 |
2 | 420, 210 |
3 | 105, 210 |
5 | 35, 70 |
7 | 7, 14 |
1, 2 |
∴ So the GCF of the given numbers is 2 x 2 x 3 x 5 x 7 = 420
Factors of 840
List of positive integer factors of 840 that divides 840 without a remainder.
1,2,3,4,5,6,7,8,10,12,14,15,20,21,24,28,30,35,40,42,56,60,70,84,105,120,140,168,210,280,420,840
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 840,420 . The biggest common factor number is the GCF number.
So the greatest common factor 840,420 is 420.
Here are some samples of GCF of two or more Numbers calculations.
1. What is the GCF of 840, 420?
Answer: GCF of 840, 420 is 420.
2. How to Find the GCF of 840, 420
Answer: Greatest Common Factor(GCF) of 840, 420 = 420
Step 1: Divide all the numbers with common prime numbers having remainder zero.
Step 2: Then multiply all the prime factors GCF(840, 420) = 420.