GCF of 861/291, 908/813
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Use our free GCF of Fractions Calculator tool to compute the GCF of 861/291, 908/813 i.e 1/78861 easily. The following is the detailed procedure to determine the greatest common factor of fractions 861/291, 908/813.
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 861/291,908/813?
Given fractions are 861/291,908/813
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 861/291,908/813, numerators are 861,908
Denominators are 291,813
The GCF of 861,908 is 1 .
LCM of 291,813 is 78861.
The greatest common factor of 861/291,908/813 = [GCF of 861,908]/[LCM of 291,813]= 1/78861
Therefore, the GCF of 861/291,908/813 is 1/78861.
To find the highest common factor of 861,908, we have to find the factors of both numbers and list the highest common factor.
The factors of 861 are 1, 3, 7, 21, 41, 123, 287, 861
The factors of 908 are 1, 2, 4, 227, 454, 908
The HCF of 861,908 is 1.
Lets's calculate GCF of 861,908
∴ So GCF of numbers is 1 because of no common factors present between them.
Greatest Common Factor of 861,908 By Matching Biggest Common Factor Method
Now, list down the factors of 861
:1,3,7,21,41,123,287,861
Now, list down the factors of 908
:1,2,4,227,454,908
Greatest Common Factor
We found the factors 861,908 . The biggest common factor number is the GCF number.
So the greatest common factor 861,908 is 1.
Lets's calculate LCM of 291,813
| 3 | 291, 813 |
| 97, 271 |
∴ So the LCM of the given numbers is 3 x 97 x 271 = 78861
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/78861
Therefore, the GCF of Fractions 861/291,908/813 is 1/78861
Least Common Multiple of 291,813 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 291,813 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(291,813) = 3
common factors(in case of two or more numbers have common factors) = 1
GCF(291,813) x common factors =3 x 1 = 3
LCM(291,813) = ( 291 × 813 ) / 3
LCM(291,813) = 236583 / 3
LCM(291,813) = 78861
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FAQs on GCF of Fractions of 861/291, 908/813
1. What is the HCF of 861,908?
The HCF of 861,908 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 861/291, 908/813?
Answer: GCF of Numerators as per given numbers 861/291, 908/813 is
GCF of Numerators i.e. for 861,908 is 1
LCM of denominators i.e. for 291,813 is 78861.
Thus, GCF of Fractions is 1/78861.Finally, GCF of Fractions for 861/291, 908/813 is 1/78861.