Greatest Common Factor of 423/21, 920/3858

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023


GCF of 423/21, 920/3858

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 423/21,920/3858

Given fractions are 423/21,920/3858

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 423,920

Greatest Common Factor of Numerators i.e. GCF of 423,920 is 1 .

LCM of Denominators means LCM of 21,3858 as per the given fractions.

LCM of 21,3858 is 27006 as it is the smallest common factor for both these numbers.

Lets's calculate GCF of 423,920

GCF of Fractions 423/21,920/3858 is 1/27006

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

Greatest Common Factor of 423,920 By Matching Biggest Common Factor Method

Greatest Common Factor of 423,920 By Matching Biggest Common Factor Method

Factors of 423

List of positive integer factors of 423 that divides 423 without a remainder.

1,3,9,47,141,423

Factors of 920

List of positive integer factors of 920 that divides 920 without a remainder.

1,2,4,5,8,10,20,23,40,46,92,115,184,230,460,920

Greatest Common Factor

We found the factors 423,920 . The biggest common factor number is the GCF number.
So the greatest common factor 423,920 is 1.


Lets's calculate LCM of 21,3858

3 21, 3858
7, 1286

∴ So the LCM of the given numbers is 3 x 7 x 1286 = 27006

Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/27006

Therefore, the GCF of Fractions 423/21,920/3858 is 1/27006

Least Common Multiple of 21,3858 with GCF Formula

Least Common Multiple of 21,3858 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 21,3858 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(21,3858) = 3

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

GCF(21,3858) x common factors =3 x 1 = 3

LCM(21,3858) = ( 21 × 3858 ) / 3

LCM(21,3858) = 81018 / 3

LCM(21,3858) = 27006


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 423/21, 920/3858

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 423/21, 920/3858?

Answer: GCF of Numerators as per given numbers 423/21, 920/3858 is

GCF of Numerators i.e. for 423,920 is 1

LCM of denominators i.e. for 21,3858 is 27006.

Thus, GCF of Fractions is 1/27006.Finally, GCF of Fractions for 423/21, 920/3858 is 1/27006.