Greatest Common Factor of 1240, 7780

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 1240, 7780 i.e. 20 largest integer that divides all the numbers equally.

Greatest common factor (GCF) of 1240, 7780 is 20.

GCF(1240, 7780) = 20

GCF of 1240, 7780

Greatest common factor or Greatest common divisor (GCD) can be calculated in two ways

GCF of:

Greatest Common Factor of 1240,7780

GCF of 1240,7780 is 20

2 1240, 7780
2 620, 3890
5 310, 1945
62, 389

∴ So the GCF of the given numbers is 2 x 2 x 5 = 20

Greatest Common Factor (GCF) By Matching Biggest Common Factor Method

Factors of 1240

List of positive integer factors of 1240 that divides 1240 without a remainder.

1,2,4,5,8,10,20,31,40,62,124,155,248,310,620,1240

Factors of 7780

List of positive integer factors of 7780 that divides 7780 without a remainder.

1,2,4,5,10,20,389,778,1556,1945,3890,7780

Greatest Common Factor

We found the factors 1240,7780 . The biggest common factor number is the GCF number.
So the greatest common factor 1240,7780 is 20.

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 1240, 7780

1. What is the GCF of 1240, 7780?

Answer: GCF of 1240, 7780 is 20.

2. How to Find the GCF of 1240, 7780

Answer: Greatest Common Factor(GCF) of 1240, 7780 = 20

Step 1: Divide all the numbers with common prime numbers having remainder zero.

Step 2: Then multiply all the prime factors GCF(1240, 7780) = 20.