GCF of 391/21, 918/173
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Use our free GCF of Fractions Calculator tool to compute the GCF of 391/21, 918/173 i.e 17/3633 easily. The following is the detailed procedure to determine the greatest common factor of fractions 391/21, 918/173.
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 391/21,918/173?
Given fractions are 391/21,918/173
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 391/21,918/173, numerators are 391,918
Denominators are 21,173
The GCF of 391,918 is 17 .
LCM of 21,173 is 3633.
The greatest common factor of 391/21,918/173 = [GCF of 391,918]/[LCM of 21,173]= 17/3633
Therefore, the GCF of 391/21,918/173 is 17/3633.
To find the highest common factor of 391,918, we have to find the factors of both numbers and list the highest common factor.
The factors of 391 are 1, 17, 23, 391
The factors of 918 are 1, 2, 3, 6, 9, 17, 18, 27, 34, 51, 54, 102, 153, 306, 459, 918
The HCF of 391,918 is 17.
Lets's calculate GCF of 391,918
| 17 | 391, 918 |
| 23, 54 |
∴ So the GCF of the given numbers is 17 = 17
Greatest Common Factor of 391,918 By Matching Biggest Common Factor Method
Now, list down the factors of 391
:1,17,23,391
Now, list down the factors of 918
:1,2,3,6,9,17,18,27,34,51,54,102,153,306,459,918
Greatest Common Factor
We found the factors 391,918 . The biggest common factor number is the GCF number.
So the greatest common factor 391,918 is 17.
Lets's calculate LCM of 21,173
Given numbers has no common factors except 1. So, there LCM is their product i.e 3633
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 17/3633
Therefore, the GCF of Fractions 391/21,918/173 is 17/3633
Least Common Multiple of 21,173 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 21,173 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(21,173) = 1
common factors(in case of two or more numbers have common factors) = 1
GCF(21,173) x common factors =1 x 1 = 1
LCM(21,173) = ( 21 × 173 ) / 1
LCM(21,173) = 3633 / 1
LCM(21,173) = 3633
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FAQs on GCF of Fractions of 391/21, 918/173
1. What is the HCF of 391,918?
The HCF of 391,918 is 17
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 391/21, 918/173?
Answer: GCF of Numerators as per given numbers 391/21, 918/173 is
GCF of Numerators i.e. for 391,918 is 17
LCM of denominators i.e. for 21,173 is 3633.
Thus, GCF of Fractions is 17/3633.Finally, GCF of Fractions for 391/21, 918/173 is 17/3633.