Greatest Common Factor of 420/287, 5205/7119

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023

GCF of 420/287, 5205/7119

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 420/287,5205/7119

Given fractions are 420/287,5205/7119

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 420,5205

Greatest Common Factor of Numerators i.e. GCF of 420,5205 is 15 .

LCM of Denominators means LCM of 287,7119 as per the given fractions.

LCM of 287,7119 is 291879 as it is the smallest common factor for both these numbers.

Lets's calculate GCF of 420,5205

GCF of Fractions 420/287,5205/7119 is 15/291879

3 420, 5205
5 140, 1735
28, 347

∴ So the GCF of the given numbers is 3 x 5 = 15

Greatest Common Factor of 420,5205 By Matching Biggest Common Factor Method

Greatest Common Factor of 420,5205 By Matching Biggest Common Factor Method

Factors of 420

List of positive integer factors of 420 that divides 420 without a remainder.

1,2,3,4,5,6,7,10,12,14,15,20,21,28,30,35,42,60,70,84,105,140,210,420

Factors of 5205

List of positive integer factors of 5205 that divides 5205 without a remainder.

1,3,5,15,347,1041,1735,5205

Greatest Common Factor

We found the factors 420,5205 . The biggest common factor number is the GCF number.
So the greatest common factor 420,5205 is 15.

Lets's calculate LCM of 287,7119

7 287, 7119
41, 1017

∴ So the LCM of the given numbers is 7 x 41 x 1017 = 291879

Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 15/291879

Therefore, the GCF of Fractions 420/287,5205/7119 is 15/291879

Least Common Multiple of 287,7119 with GCF Formula

Least Common Multiple of 287,7119 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 287,7119 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(287,7119) = 7

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

GCF(287,7119) x common factors =7 x 1 = 7

LCM(287,7119) = ( 287 × 7119 ) / 7

LCM(287,7119) = 2043153 / 7

LCM(287,7119) = 291879


GCF of Fractions Calculation Examples

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GCF of Fractions Calculation Examples

Here are some samples of GCF of Fractions calculations.

Frequently Asked Questions on Fractional GCF of 420/287, 5205/7119

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 420/287, 5205/7119?

Answer: GCF of Numerators as per given numbers 420/287, 5205/7119 is

GCF of Numerators i.e. for 420,5205 is 15

LCM of denominators i.e. for 287,7119 is 291879.

Thus, GCF of Fractions is 15/291879.Finally, GCF of Fractions for 420/287, 5205/7119 is 15/291879.