GCF of 31/408, 72/472, 684/907
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Use our free GCF of Fractions Calculator tool to compute the GCF of 31/408, 72/472, 684/907 i.e 1/21833304 easily. The following is the detailed procedure to determine the greatest common factor of fractions 31/408, 72/472, 684/907.
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 31/408,72/472,684/907?
Given fractions are 31/408,72/472,684/907
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 31/408,72/472,684/907, numerators are 31,72,684
Denominators are 408,472,907
The GCF of 31,72,684 is 1 .
LCM of 408,472,907 is 21833304.
The greatest common factor of 31/408,72/472,684/907 = [GCF of 31,72,684]/[LCM of 408,472,907]= 1/21833304
Therefore, the GCF of 31/408,72/472,684/907 is 1/21833304.
To find the highest common factor of 31,72,684, we have to find the factors of both numbers and list the highest common factor.
The factors of 31 are 1, 31
The factors of 72 are 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72
The factors of 684 are 1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 114, 171, 228, 342, 684
The HCF of 31,72,684 is 1.
Lets's calculate GCF of 31,72,684
∴ So GCF of numbers is 1 because of no common factors present between them.
Greatest Common Factor of 31,72,684 By Matching Biggest Common Factor Method
Now, list down the factors of 31
:1,31
Now, list down the factors of 72
:1,2,3,4,6,8,9,12,18,24,36,72
Now, list down the factors of 684
:1,2,3,4,6,9,12,18,19,36,38,57,76,114,171,228,342,684
Greatest Common Factor
We found the factors 31,72,684 . The biggest common factor number is the GCF number.
So the greatest common factor 31,72,684 is 1.
Lets's calculate LCM of 408,472,907
| 2 | 408, 472, 907 |
| 2 | 204, 236, 907 |
| 2 | 102, 118, 907 |
| 51, 59, 907 |
∴ So the LCM of the given numbers is 2 x 2 x 2 x 51 x 59 x 907 = 21833304
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/21833304
Therefore, the GCF of Fractions 31/408,72/472,684/907 is 1/21833304
Least Common Multiple of 408,472,907 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 408,472,907 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(408,472,907) = 1
common factors(in case of two or more numbers have common factors) = 8
GCF(408,472,907) x common factors =1 x 8 = 8
LCM(408,472,907) = ( 408 × 472 × 907 ) / 8
LCM(408,472,907) = 174666432 / 8
LCM(408,472,907) = 21833304
GCF of Fractions Calculation Examples
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FAQs on GCF of Fractions of 31/408, 72/472, 684/907
1. What is the HCF of 31,72,684?
The HCF of 31,72,684 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 31/408, 72/472, 684/907?
Answer: GCF of Numerators as per given numbers 31/408, 72/472, 684/907 is
GCF of Numerators i.e. for 31,72,684 is 1
LCM of denominators i.e. for 408,472,907 is 21833304.
Thus, GCF of Fractions is 1/21833304.Finally, GCF of Fractions for 31/408, 72/472, 684/907 is 1/21833304.