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 861, 2640 i.e. 3 largest integer that divides all the numbers equally.
Greatest common factor (GCF) of 861, 2640 is 3.
GCF(861, 2640) = 3
Greatest common factor or Greatest common divisor (GCD) can be calculated in two ways
3 | 861, 2640 |
287, 880 |
∴ So the GCF of the given numbers is 3 = 3
Factors of 861
List of positive integer factors of 861 that divides 861 without a remainder.
1,3,7,21,41,123,287,861
Factors of 2640
List of positive integer factors of 2640 that divides 2640 without a remainder.
1,2,3,4,5,6,8,10,11,12,15,16,20,22,24,30,33,40,44,48,55,60,66,80,88,110,120,132,165,176,220,240,264,330,440,528,660,880,1320,2640
Greatest Common Factor
We found the factors 861,2640 . The biggest common factor number is the GCF number.
So the greatest common factor 861,2640 is 3.
Here are some samples of GCF of two or more Numbers calculations.
1. What is the GCF of 861, 2640?
Answer: GCF of 861, 2640 is 3.
2. How to Find the GCF of 861, 2640
Answer: Greatest Common Factor(GCF) of 861, 2640 = 3
Step 1: Divide all the numbers with common prime numbers having remainder zero.
Step 2: Then multiply all the prime factors GCF(861, 2640) = 3.