GCF of 831/15, 105/798
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Use our free GCF of Fractions Calculator tool to compute the GCF of 831/15, 105/798 i.e 3/3990 easily. The following is the detailed procedure to determine the greatest common factor of fractions 831/15, 105/798.
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 831/15,105/798?
Given fractions are 831/15,105/798
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 831/15,105/798, numerators are 831,105
Denominators are 15,798
The GCF of 831,105 is 3 .
LCM of 15,798 is 3990.
The greatest common factor of 831/15,105/798 = [GCF of 831,105]/[LCM of 15,798]= 3/3990
Therefore, the GCF of 831/15,105/798 is 3/3990.
To find the highest common factor of 831,105, we have to find the factors of both numbers and list the highest common factor.
The factors of 831 are 1, 3, 277, 831
The factors of 105 are 1, 3, 5, 7, 15, 21, 35, 105
The HCF of 831,105 is 3.
Lets's calculate GCF of 831,105
| 3 | 831, 105 |
| 277, 35 |
∴ So the GCF of the given numbers is 3 = 3
Greatest Common Factor of 831,105 By Matching Biggest Common Factor Method
Now, list down the factors of 831
:1,3,277,831
Now, list down the factors of 105
:1,3,5,7,15,21,35,105
Greatest Common Factor
We found the factors 831,105 . The biggest common factor number is the GCF number.
So the greatest common factor 831,105 is 3.
Lets's calculate LCM of 15,798
| 3 | 15, 798 |
| 5, 266 |
∴ So the LCM of the given numbers is 3 x 5 x 266 = 3990
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 3/3990
Therefore, the GCF of Fractions 831/15,105/798 is 3/3990
Least Common Multiple of 15,798 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 15,798 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(15,798) = 3
common factors(in case of two or more numbers have common factors) = 1
GCF(15,798) x common factors =3 x 1 = 3
LCM(15,798) = ( 15 × 798 ) / 3
LCM(15,798) = 11970 / 3
LCM(15,798) = 3990
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FAQs on GCF of Fractions of 831/15, 105/798
1. What is the HCF of 831,105?
The HCF of 831,105 is 3
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 831/15, 105/798?
Answer: GCF of Numerators as per given numbers 831/15, 105/798 is
GCF of Numerators i.e. for 831,105 is 3
LCM of denominators i.e. for 15,798 is 3990.
Thus, GCF of Fractions is 3/3990.Finally, GCF of Fractions for 831/15, 105/798 is 3/3990.