How to Find GCF of 78/31, 161/67, 721/767?

GCF of 78/31, 161/67, 721/767

Created By : Veerendra
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023

Use our free GCF of Fractions Calculator tool to compute the GCF of 78/31, 161/67, 721/767 i.e 1/1593059 easily. The following is the detailed procedure to determine the greatest common factor of fractions 78/31, 161/67, 721/767.

Enter two or more fractions separated by "commas"

Ex: 2/3, 5/7 or 3/5, 5/9, 7/3

What is the GCF of 78/31,161/67,721/767?

Given fractions are 78/31,161/67,721/767

To find the GCF of fractions, we have to find the GCF of numerator numbers and LCM of denominator numbers. Its formula is given by

GCF of Fraction = Greatest Common Factor of Numerator/Least Common Multiple of Denominators

In the fractions 78/31,161/67,721/767, numerators are 78,161,721

Denominators are 31,67,767

The GCF of 78,161,721 is 1 .

LCM of 31,67,767 is 1593059.

The greatest common factor of 78/31,161/67,721/767 = [GCF of 78,161,721]/[LCM of 31,67,767]= 1/1593059

Therefore, the GCF of 78/31,161/67,721/767 is 1/1593059.

Greatest Common Factor of 78,161,721

To find the highest common factor of 78,161,721, we have to find the factors of both numbers and list the highest common factor.

The factors of 78 are 1, 2, 3, 6, 13, 26, 39, 78

The factors of 161 are 1, 7, 23, 161

The factors of 721 are 1, 7, 103, 721

The HCF of 78,161,721 is 1.

Lets's calculate GCF of 78,161,721

Greatest Common Factor (GCF) of 78,161,721 By Common Division

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

Greatest Common Factor of 78,161,721 By Matching Biggest Common Factor Method

Now, list down the factors of 78

1,2,3,6,13,26,39,78

Now, list down the factors of 161

1,7,23,161

Now, list down the factors of 721

1,7,103,721

Greatest Common Factor

We found the factors 78,161,721 . The biggest common factor number is the GCF number.
So the greatest common factor 78,161,721 is 1.

Lets's calculate LCM of 31,67,767

Lowest Common Multiple of 31,67,767 using Common Division

Given numbers has no common factors except 1. So, there LCM is their product i.e 1593059

Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/1593059

Therefore, the GCF of Fractions 78/31,161/67,721/767 is 1/1593059

Least Common Multiple of 31,67,767 with GCF Formula

The formula of LCM is LCM(a₁,a₂,a₃....,a_n) = ( a₁ × a₂ × a₃ × .... × a_n) / GCF(a₁,a₂,a₃....,a_n) x common factors(if more than 2 numbers have common factors).

We need to calculate greatest common factor of 31,67,767 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(31,67,767) = 1

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

GCF(31,67,767) x common factors =1 x 1 = 1

LCM(31,67,767) = ( 31 × 67 × 767 ) / 1

LCM(31,67,767) = 1593059 / 1

LCM(31,67,767) = 1593059

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FAQs on GCF of Fractions of 78/31, 161/67, 721/767

1. What is the HCF of 78,161,721?

The HCF of 78,161,721 is 1

2. What is the GCF of a fraction?

The GCF of a fraction is defined as the greatest fraction that divides exactly into 2 or more fractions.

3. 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.

4. What is the GCF of Fractions for 78/31, 161/67, 721/767?

Answer: GCF of Numerators as per given numbers 78/31, 161/67, 721/767 is

GCF of Numerators i.e. for 78,161,721 is 1

LCM of denominators i.e. for 31,67,767 is 1593059.

Thus, GCF of Fractions is 1/1593059.Finally, GCF of Fractions for 78/31, 161/67, 721/767 is 1/1593059.