Greatest Common Factor of 840, 1720
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, 1720 i.e. 40 largest integer that divides all the numbers equally.
Greatest common factor (GCF) of 840, 1720 is 40.
GCF(840, 1720) = 40
GCF of 840, 1720
Greatest common factor or Greatest common divisor (GCD) can be calculated in two ways
- Greatest Common Factor of 840, 1720 by common division method
- Greatest Common Factor of 840, 1720 with matching the biggest common factor
GCF of 840,1720 is 40
| 2 | 840, 1720 |
| 2 | 420, 860 |
| 2 | 210, 430 |
| 5 | 105, 215 |
| 21, 43 |
∴ So the GCF of the given numbers is 2 x 2 x 2 x 5 = 40
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 1720
List of positive integer factors of 1720 that divides 1720 without a remainder.
1,2,4,5,8,10,20,40,43,86,172,215,344,430,860,1720
Greatest Common Factor
We found the factors 840,1720 . The biggest common factor number is the GCF number.
So the greatest common factor 840,1720 is 40.
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 840, 1720
1. What is the GCF of 840, 1720?
Answer: GCF of 840, 1720 is 40.
2. How to Find the GCF of 840, 1720
Answer: Greatest Common Factor(GCF) of 840, 1720 = 40
Step 1: Divide all the numbers with common prime numbers having remainder zero.
Step 2: Then multiply all the prime factors GCF(840, 1720) = 40.
