Greatest Common Factor of 75/638, 689/517

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023


GCF of 75/638, 689/517

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 75/638,689/517

Given fractions are 75/638,689/517

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 75,689

Greatest Common Factor of Numerators i.e. GCF of 75,689 is 1 .

LCM of Denominators means LCM of 638,517 as per the given fractions.

LCM of 638,517 is 29986 as it is the smallest common factor for both these numbers.

Lets's calculate GCF of 75,689

GCF of Fractions 75/638,689/517 is 1/29986

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

Greatest Common Factor of 75,689 By Matching Biggest Common Factor Method

Greatest Common Factor of 75,689 By Matching Biggest Common Factor Method

Factors of 75

List of positive integer factors of 75 that divides 75 without a remainder.

1,3,5,15,25,75

Factors of 689

List of positive integer factors of 689 that divides 689 without a remainder.

1,13,53,689

Greatest Common Factor

We found the factors 75,689 . The biggest common factor number is the GCF number.
So the greatest common factor 75,689 is 1.


Lets's calculate LCM of 638,517

11 638, 517
58, 47

∴ So the LCM of the given numbers is 11 x 58 x 47 = 29986

Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/29986

Therefore, the GCF of Fractions 75/638,689/517 is 1/29986

Least Common Multiple of 638,517 with GCF Formula

Least Common Multiple of 638,517 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 638,517 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(638,517) = 11

common factors(in case of two or more numbers have common factors) = 1

GCF(638,517) x common factors =11 x 1 = 11

LCM(638,517) = ( 638 × 517 ) / 11

LCM(638,517) = 329846 / 11

LCM(638,517) = 29986


GCF of Fractions Calculation Examples

Here are some samples of GCF of Fractions calculations.

GCF of Fractions Calculation Examples

Frequently Asked Questions on Fractional GCF of 75/638, 689/517

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 75/638, 689/517?

Answer: GCF of Numerators as per given numbers 75/638, 689/517 is

GCF of Numerators i.e. for 75,689 is 1

LCM of denominators i.e. for 638,517 is 29986.

Thus, GCF of Fractions is 1/29986.Finally, GCF of Fractions for 75/638, 689/517 is 1/29986.