GCF of 871/19, 900/21, 392/39
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Use our free GCF of Fractions Calculator tool to compute the GCF of 871/19, 900/21, 392/39 i.e 1/5187 easily. The following is the detailed procedure to determine the greatest common factor of fractions 871/19, 900/21, 392/39.
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 871/19,900/21,392/39?
Given fractions are 871/19,900/21,392/39
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 871/19,900/21,392/39, numerators are 871,900,392
Denominators are 19,21,39
The GCF of 871,900,392 is 1 .
LCM of 19,21,39 is 5187.
The greatest common factor of 871/19,900/21,392/39 = [GCF of 871,900,392]/[LCM of 19,21,39]= 1/5187
Therefore, the GCF of 871/19,900/21,392/39 is 1/5187.
To find the highest common factor of 871,900,392, we have to find the factors of both numbers and list the highest common factor.
The factors of 871 are 1, 13, 67, 871
The factors of 900 are 1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 150, 180, 225, 300, 450, 900
The factors of 392 are 1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392
The HCF of 871,900,392 is 1.
Lets's calculate GCF of 871,900,392
∴ So GCF of numbers is 1 because of no common factors present between them.
Greatest Common Factor of 871,900,392 By Matching Biggest Common Factor Method
Now, list down the factors of 871
:1,13,67,871
Now, list down the factors of 900
:1,2,3,4,5,6,9,10,12,15,18,20,25,30,36,45,50,60,75,90,100,150,180,225,300,450,900
Now, list down the factors of 392
:1,2,4,7,8,14,28,49,56,98,196,392
Greatest Common Factor
We found the factors 871,900,392 . The biggest common factor number is the GCF number.
So the greatest common factor 871,900,392 is 1.
Lets's calculate LCM of 19,21,39
| 3 | 19, 21, 39 |
| 19, 7, 13 |
∴ So the LCM of the given numbers is 3 x 19 x 7 x 13 = 5187
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/5187
Therefore, the GCF of Fractions 871/19,900/21,392/39 is 1/5187
Least Common Multiple of 19,21,39 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 19,21,39 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(19,21,39) = 1
common factors(in case of two or more numbers have common factors) = 3
GCF(19,21,39) x common factors =1 x 3 = 3
LCM(19,21,39) = ( 19 × 21 × 39 ) / 3
LCM(19,21,39) = 15561 / 3
LCM(19,21,39) = 5187
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FAQs on GCF of Fractions of 871/19, 900/21, 392/39
1. What is the HCF of 871,900,392?
The HCF of 871,900,392 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 871/19, 900/21, 392/39?
Answer: GCF of Numerators as per given numbers 871/19, 900/21, 392/39 is
GCF of Numerators i.e. for 871,900,392 is 1
LCM of denominators i.e. for 19,21,39 is 5187.
Thus, GCF of Fractions is 1/5187.Finally, GCF of Fractions for 871/19, 900/21, 392/39 is 1/5187.