Greatest Common Factor of 855/39, 2785/666

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023


GCF of 855/39, 2785/666

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 855/39,2785/666

Given fractions are 855/39,2785/666

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 855,2785

Greatest Common Factor of Numerators i.e. GCF of 855,2785 is 5 .

LCM of Denominators means LCM of 39,666 as per the given fractions.

LCM of 39,666 is 8658 as it is the smallest common factor for both these numbers.

Lets's calculate GCF of 855,2785

GCF of Fractions 855/39,2785/666 is 5/8658

5 855, 2785
171, 557

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

Greatest Common Factor of 855,2785 By Matching Biggest Common Factor Method

Greatest Common Factor of 855,2785 By Matching Biggest Common Factor Method

Factors of 855

List of positive integer factors of 855 that divides 855 without a remainder.

1,3,5,9,15,19,45,57,95,171,285,855

Factors of 2785

List of positive integer factors of 2785 that divides 2785 without a remainder.

1,5,557,2785

Greatest Common Factor

We found the factors 855,2785 . The biggest common factor number is the GCF number.
So the greatest common factor 855,2785 is 5.


Lets's calculate LCM of 39,666

3 39, 666
13, 222

∴ So the LCM of the given numbers is 3 x 13 x 222 = 8658

Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 5/8658

Therefore, the GCF of Fractions 855/39,2785/666 is 5/8658

Least Common Multiple of 39,666 with GCF Formula

Least Common Multiple of 39,666 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 39,666 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(39,666) = 3

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

GCF(39,666) x common factors =3 x 1 = 3

LCM(39,666) = ( 39 × 666 ) / 3

LCM(39,666) = 25974 / 3

LCM(39,666) = 8658


GCF of Fractions Calculation Examples

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GCF of Fractions Calculation Examples

Frequently Asked Questions on Fractional GCF of 855/39, 2785/666

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 855/39, 2785/666?

Answer: GCF of Numerators as per given numbers 855/39, 2785/666 is

GCF of Numerators i.e. for 855,2785 is 5

LCM of denominators i.e. for 39,666 is 8658.

Thus, GCF of Fractions is 5/8658.Finally, GCF of Fractions for 855/39, 2785/666 is 5/8658.