Greatest Common Factor of 780/20, 617/34, 549/91

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023

GCF of 780/20, 617/34, 549/91

Enter two or more fractions separated by "commas"

Ex: 2/3, 5/7 or 3/5, 5/9, 7/3

GCF of:

Greatest Common Factor of 780/20,617/34,549/91

Given fractions are 780/20,617/34,549/91

Formula to find GCF of Fractions is

GCF = GCF of Numerators/LCM of Denominators

As per the formula GCF of Fractions let’s split into two parts and find the GCF of Numerators and LCM of Denominators

In the given fractions GCF of Numerators means GCF of 780,617,549

Greatest Common Factor of Numerators i.e. GCF of 780,617,549 is 1 .

LCM of Denominators means LCM of 20,34,91 as per the given fractions.

LCM of 20,34,91 is 30940 as it is the smallest common factor for both these numbers.

Lets's calculate GCF of 780,617,549

GCF of Fractions 780/20,617/34,549/91 is 1/30940

∴ So GCF of numbers is 1 because of no common factors present between them.

Greatest Common Factor of 780,617,549 By Matching Biggest Common Factor Method

Greatest Common Factor of 780,617,549 By Matching Biggest Common Factor Method

Factors of 780

List of positive integer factors of 780 that divides 780 without a remainder.

1,2,3,4,5,6,10,12,13,15,20,26,30,39,52,60,65,78,130,156,195,260,390,780

Factors of 617

List of positive integer factors of 617 that divides 617 without a remainder.

1,617

Factors of 549

List of positive integer factors of 549 that divides 549 without a remainder.

1,3,9,61,183,549

Greatest Common Factor

We found the factors 780,617,549 . The biggest common factor number is the GCF number.
So the greatest common factor 780,617,549 is 1.

Lets's calculate LCM of 20,34,91

2 20, 34, 91
10, 17, 91

∴ So the LCM of the given numbers is 2 x 10 x 17 x 91 = 30940

Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/30940

Therefore, the GCF of Fractions 780/20,617/34,549/91 is 1/30940

Least Common Multiple of 20,34,91 with GCF Formula

Least Common Multiple of 20,34,91 with GCF Formula

The formula of LCM is LCM(a1,a2,a3....,an) = ( a1 × a2 × a3 × .... × an) / GCF(a1,a2,a3....,an) x common factors(if more than 2 numbers have common factors).

We need to calculate greatest common factor of 20,34,91 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(20,34,91) = 1

common factors(in case of two or more numbers have common factors) = 2

GCF(20,34,91) x common factors =1 x 2 = 2

LCM(20,34,91) = ( 20 × 34 × 91 ) / 2

LCM(20,34,91) = 61880 / 2

LCM(20,34,91) = 30940


GCF of Fractions Calculation Examples

Here are some samples of GCF of Fractions calculations.

GCF of Fractions Calculation Examples

Here are some samples of GCF of Fractions calculations.

Frequently Asked Questions on Fractional GCF of 780/20, 617/34, 549/91

1. How to find GCF in Fractions?

Answer: GCF of fractions can be found using the simple formula GCF of Fractions = GCF of Numerators/LCM of Denominators.

2. What is the GCF of Fractions for 780/20, 617/34, 549/91?

Answer: GCF of Numerators as per given numbers 780/20, 617/34, 549/91 is

GCF of Numerators i.e. for 780,617,549 is 1

LCM of denominators i.e. for 20,34,91 is 30940.

Thus, GCF of Fractions is 1/30940.Finally, GCF of Fractions for 780/20, 617/34, 549/91 is 1/30940.