GCF of 38/31, 921/87, 791/243
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Use our free GCF of Fractions Calculator tool to compute the GCF of 38/31, 921/87, 791/243 i.e 1/218457 easily. The following is the detailed procedure to determine the greatest common factor of fractions 38/31, 921/87, 791/243.
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 38/31,921/87,791/243?
Given fractions are 38/31,921/87,791/243
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 38/31,921/87,791/243, numerators are 38,921,791
Denominators are 31,87,243
The GCF of 38,921,791 is 1 .
LCM of 31,87,243 is 218457.
The greatest common factor of 38/31,921/87,791/243 = [GCF of 38,921,791]/[LCM of 31,87,243]= 1/218457
Therefore, the GCF of 38/31,921/87,791/243 is 1/218457.
To find the highest common factor of 38,921,791, we have to find the factors of both numbers and list the highest common factor.
The factors of 38 are 1, 2, 19, 38
The factors of 921 are 1, 3, 307, 921
The factors of 791 are 1, 7, 113, 791
The HCF of 38,921,791 is 1.
Lets's calculate GCF of 38,921,791
∴ So GCF of numbers is 1 because of no common factors present between them.
Greatest Common Factor of 38,921,791 By Matching Biggest Common Factor Method
Now, list down the factors of 38
:1,2,19,38
Now, list down the factors of 921
:1,3,307,921
Now, list down the factors of 791
:1,7,113,791
Greatest Common Factor
We found the factors 38,921,791 . The biggest common factor number is the GCF number.
So the greatest common factor 38,921,791 is 1.
Lets's calculate LCM of 31,87,243
| 3 | 31, 87, 243 |
| 31, 29, 81 |
∴ So the LCM of the given numbers is 3 x 31 x 29 x 81 = 218457
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/218457
Therefore, the GCF of Fractions 38/31,921/87,791/243 is 1/218457
Least Common Multiple of 31,87,243 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 31,87,243 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(31,87,243) = 1
common factors(in case of two or more numbers have common factors) = 3
GCF(31,87,243) x common factors =1 x 3 = 3
LCM(31,87,243) = ( 31 × 87 × 243 ) / 3
LCM(31,87,243) = 655371 / 3
LCM(31,87,243) = 218457
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FAQs on GCF of Fractions of 38/31, 921/87, 791/243
1. What is the HCF of 38,921,791?
The HCF of 38,921,791 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 38/31, 921/87, 791/243?
Answer: GCF of Numerators as per given numbers 38/31, 921/87, 791/243 is
GCF of Numerators i.e. for 38,921,791 is 1
LCM of denominators i.e. for 31,87,243 is 218457.
Thus, GCF of Fractions is 1/218457.Finally, GCF of Fractions for 38/31, 921/87, 791/243 is 1/218457.