Greatest Common Factor of 507/21, 489/700

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023


GCF of 507/21, 489/700

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 507/21,489/700

Given fractions are 507/21,489/700

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 507,489

Greatest Common Factor of Numerators i.e. GCF of 507,489 is 3 .

LCM of Denominators means LCM of 21,700 as per the given fractions.

LCM of 21,700 is 2100 as it is the smallest common factor for both these numbers.

Lets's calculate GCF of 507,489

GCF of Fractions 507/21,489/700 is 3/2100

3 507, 489
169, 163

∴ So the GCF of the given numbers is 3 = 3

Greatest Common Factor of 507,489 By Matching Biggest Common Factor Method

Greatest Common Factor of 507,489 By Matching Biggest Common Factor Method

Factors of 507

List of positive integer factors of 507 that divides 507 without a remainder.

1,3,13,39,169,507

Factors of 489

List of positive integer factors of 489 that divides 489 without a remainder.

1,3,163,489

Greatest Common Factor

We found the factors 507,489 . The biggest common factor number is the GCF number.
So the greatest common factor 507,489 is 3.


Lets's calculate LCM of 21,700

7 21, 700
3, 100

∴ So the LCM of the given numbers is 7 x 3 x 100 = 2100

Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 3/2100

Therefore, the GCF of Fractions 507/21,489/700 is 3/2100

Least Common Multiple of 21,700 with GCF Formula

Least Common Multiple of 21,700 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 21,700 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(21,700) = 7

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

GCF(21,700) x common factors =7 x 1 = 7

LCM(21,700) = ( 21 × 700 ) / 7

LCM(21,700) = 14700 / 7

LCM(21,700) = 2100


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 507/21, 489/700

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 507/21, 489/700?

Answer: GCF of Numerators as per given numbers 507/21, 489/700 is

GCF of Numerators i.e. for 507,489 is 3

LCM of denominators i.e. for 21,700 is 2100.

Thus, GCF of Fractions is 3/2100.Finally, GCF of Fractions for 507/21, 489/700 is 3/2100.