Greatest Common Factor of 638/98, 858/678

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023


GCF of 638/98, 858/678

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 638/98,858/678

Given fractions are 638/98,858/678

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 638,858

Greatest Common Factor of Numerators i.e. GCF of 638,858 is 22 .

LCM of Denominators means LCM of 98,678 as per the given fractions.

LCM of 98,678 is 33222 as it is the smallest common factor for both these numbers.

Lets's calculate GCF of 638,858

GCF of Fractions 638/98,858/678 is 22/33222

2 638, 858
11 319, 429
29, 39

∴ So the GCF of the given numbers is 2 x 11 = 22

Greatest Common Factor of 638,858 By Matching Biggest Common Factor Method

Greatest Common Factor of 638,858 By Matching Biggest Common Factor Method

Factors of 638

List of positive integer factors of 638 that divides 638 without a remainder.

1,2,11,22,29,58,319,638

Factors of 858

List of positive integer factors of 858 that divides 858 without a remainder.

1,2,3,6,11,13,22,26,33,39,66,78,143,286,429,858

Greatest Common Factor

We found the factors 638,858 . The biggest common factor number is the GCF number.
So the greatest common factor 638,858 is 22.


Lets's calculate LCM of 98,678

2 98, 678
49, 339

∴ So the LCM of the given numbers is 2 x 49 x 339 = 33222

Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 22/33222

Therefore, the GCF of Fractions 638/98,858/678 is 22/33222

Least Common Multiple of 98,678 with GCF Formula

Least Common Multiple of 98,678 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 98,678 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(98,678) = 2

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

GCF(98,678) x common factors =2 x 1 = 2

LCM(98,678) = ( 98 × 678 ) / 2

LCM(98,678) = 66444 / 2

LCM(98,678) = 33222


GCF of Fractions Calculation Examples

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GCF of Fractions Calculation Examples

Frequently Asked Questions on Fractional GCF of 638/98, 858/678

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 638/98, 858/678?

Answer: GCF of Numerators as per given numbers 638/98, 858/678 is

GCF of Numerators i.e. for 638,858 is 22

LCM of denominators i.e. for 98,678 is 33222.

Thus, GCF of Fractions is 22/33222.Finally, GCF of Fractions for 638/98, 858/678 is 22/33222.