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GCF of 821/11, 658/789

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 821/11, 658/789 i.e 1/8679 easily. The following is the detailed procedure to determine the greatest common factor of fractions 821/11, 658/789.

Enter two or more fractions separated by "commas"

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

GCF of:

What is the GCF of 821/11,658/789?

Given fractions are 821/11,658/789

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 821/11,658/789, numerators are 821,658

Denominators are 11,789

The GCF of 821,658 is 1 .

LCM of 11,789 is 8679.

The greatest common factor of 821/11,658/789 = [GCF of 821,658]/[LCM of 11,789]= 1/8679

Therefore, the GCF of 821/11,658/789 is 1/8679.

Greatest Common Factor of 821,658

To find the highest common factor of 821,658, we have to find the factors of both numbers and list the highest common factor.

The factors of 821 are 1, 821

The factors of 658 are 1, 2, 7, 14, 47, 94, 329, 658

The HCF of 821,658 is 1.

Lets's calculate GCF of 821,658

Greatest Common Factor (GCF) of 821,658 By Common Division

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

Greatest Common Factor of 821,658 By Matching Biggest Common Factor Method

Greatest Common Factor of 821,658 By Matching Biggest Common Factor Method

Now, list down the factors of 821

:

1,821

Now, list down the factors of 658

:

1,2,7,14,47,94,329,658

Greatest Common Factor

We found the factors 821,658 . The biggest common factor number is the GCF number.
So the greatest common factor 821,658 is 1.


Lets's calculate LCM of 11,789

Lowest Common Multiple of 11,789 using Common Division

Given numbers has no common factors except 1. So, there LCM is their product i.e 8679

Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/8679

Therefore, the GCF of Fractions 821/11,658/789 is 1/8679

Least Common Multiple of 11,789 with GCF Formula

Least Common Multiple of 11,789 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 11,789 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(11,789) = 1

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

GCF(11,789) x common factors =1 x 1 = 1

LCM(11,789) = ( 11 × 789 ) / 1

LCM(11,789) = 8679 / 1

LCM(11,789) = 8679


GCF of Fractions Calculation Examples

FAQs on GCF of Fractions of 821/11, 658/789

1. What is the HCF of 821,658?

The HCF of 821,658 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 821/11, 658/789?

Answer: GCF of Numerators as per given numbers 821/11, 658/789 is

GCF of Numerators i.e. for 821,658 is 1

LCM of denominators i.e. for 11,789 is 8679.

Thus, GCF of Fractions is 1/8679.Finally, GCF of Fractions for 821/11, 658/789 is 1/8679.