Greatest Common Factor of 815/656, 7980/688

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023

GCF of 815/656, 7980/688

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 815/656,7980/688

Given fractions are 815/656,7980/688

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 815,7980

Greatest Common Factor of Numerators i.e. GCF of 815,7980 is 5 .

LCM of Denominators means LCM of 656,688 as per the given fractions.

LCM of 656,688 is 28208 as it is the smallest common factor for both these numbers.

Lets's calculate GCF of 815,7980

GCF of Fractions 815/656,7980/688 is 5/28208

5 815, 7980
163, 1596

∴ So the GCF of the given numbers is 5 = 5

Greatest Common Factor of 815,7980 By Matching Biggest Common Factor Method

Greatest Common Factor of 815,7980 By Matching Biggest Common Factor Method

Factors of 815

List of positive integer factors of 815 that divides 815 without a remainder.

1,5,163,815

Factors of 7980

List of positive integer factors of 7980 that divides 7980 without a remainder.

1,2,3,4,5,6,7,10,12,14,15,19,20,21,28,30,35,38,42,57,60,70,76,84,95,105,114,133,140,190,210,228,266,285,380,399,420,532,570,665,798,1140,1330,1596,1995,2660,3990,7980

Greatest Common Factor

We found the factors 815,7980 . The biggest common factor number is the GCF number.
So the greatest common factor 815,7980 is 5.

Lets's calculate LCM of 656,688

2 656, 688
2 328, 344
2 164, 172
2 82, 86
41, 43

∴ So the LCM of the given numbers is 2 x 2 x 2 x 2 x 41 x 43 = 28208

Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 5/28208

Therefore, the GCF of Fractions 815/656,7980/688 is 5/28208

Least Common Multiple of 656,688 with GCF Formula

Least Common Multiple of 656,688 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 656,688 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(656,688) = 16

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

GCF(656,688) x common factors =16 x 1 = 16

LCM(656,688) = ( 656 × 688 ) / 16

LCM(656,688) = 451328 / 16

LCM(656,688) = 28208


GCF of Fractions Calculation Examples

Here are some samples of GCF of Fractions calculations.

GCF of Fractions Calculation Examples

Here are some samples of GCF of Fractions calculations.

Frequently Asked Questions on Fractional GCF of 815/656, 7980/688

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 815/656, 7980/688?

Answer: GCF of Numerators as per given numbers 815/656, 7980/688 is

GCF of Numerators i.e. for 815,7980 is 5

LCM of denominators i.e. for 656,688 is 28208.

Thus, GCF of Fractions is 5/28208.Finally, GCF of Fractions for 815/656, 7980/688 is 5/28208.