Greatest Common Factor of 621/80, 840/347

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023


GCF of 621/80, 840/347

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 621/80,840/347

Given fractions are 621/80,840/347

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 621,840

Greatest Common Factor of Numerators i.e. GCF of 621,840 is 3 .

LCM of Denominators means LCM of 80,347 as per the given fractions.

LCM of 80,347 is 27760 as it is the smallest common factor for both these numbers.

Lets's calculate GCF of 621,840

GCF of Fractions 621/80,840/347 is 3/27760

3 621, 840
207, 280

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

Greatest Common Factor of 621,840 By Matching Biggest Common Factor Method

Greatest Common Factor of 621,840 By Matching Biggest Common Factor Method

Factors of 621

List of positive integer factors of 621 that divides 621 without a remainder.

1,3,9,23,27,69,207,621

Factors of 840

List of positive integer factors of 840 that divides 840 without a remainder.

1,2,3,4,5,6,7,8,10,12,14,15,20,21,24,28,30,35,40,42,56,60,70,84,105,120,140,168,210,280,420,840

Greatest Common Factor

We found the factors 621,840 . The biggest common factor number is the GCF number.
So the greatest common factor 621,840 is 3.


Lets's calculate LCM of 80,347

Given numbers has no common factors except 1. So, there LCM is their product i.e 27760

Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 3/27760

Therefore, the GCF of Fractions 621/80,840/347 is 3/27760

Least Common Multiple of 80,347 with GCF Formula

Least Common Multiple of 80,347 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 80,347 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(80,347) = 1

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

GCF(80,347) x common factors =1 x 1 = 1

LCM(80,347) = ( 80 × 347 ) / 1

LCM(80,347) = 27760 / 1

LCM(80,347) = 27760


GCF of Fractions Calculation Examples

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GCF of Fractions Calculation Examples

Frequently Asked Questions on Fractional GCF of 621/80, 840/347

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 621/80, 840/347?

Answer: GCF of Numerators as per given numbers 621/80, 840/347 is

GCF of Numerators i.e. for 621,840 is 3

LCM of denominators i.e. for 80,347 is 27760.

Thus, GCF of Fractions is 3/27760.Finally, GCF of Fractions for 621/80, 840/347 is 3/27760.