GCF of 124/257, 640/665
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Use our free GCF of Fractions Calculator tool to compute the GCF of 124/257, 640/665 i.e 4/170905 easily. The following is the detailed procedure to determine the greatest common factor of fractions 124/257, 640/665.
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 124/257,640/665?
Given fractions are 124/257,640/665
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 124/257,640/665, numerators are 124,640
Denominators are 257,665
The GCF of 124,640 is 4 .
LCM of 257,665 is 170905.
The greatest common factor of 124/257,640/665 = [GCF of 124,640]/[LCM of 257,665]= 4/170905
Therefore, the GCF of 124/257,640/665 is 4/170905.
To find the highest common factor of 124,640, we have to find the factors of both numbers and list the highest common factor.
The factors of 124 are 1, 2, 4, 31, 62, 124
The factors of 640 are 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640
The HCF of 124,640 is 4.
Lets's calculate GCF of 124,640
| 2 | 124, 640 |
| 2 | 62, 320 |
| 31, 160 |
∴ So the GCF of the given numbers is 2 x 2 = 4
Greatest Common Factor of 124,640 By Matching Biggest Common Factor Method
Now, list down the factors of 124
:1,2,4,31,62,124
Now, list down the factors of 640
:1,2,4,5,8,10,16,20,32,40,64,80,128,160,320,640
Greatest Common Factor
We found the factors 124,640 . The biggest common factor number is the GCF number.
So the greatest common factor 124,640 is 4.
Lets's calculate LCM of 257,665
Given numbers has no common factors except 1. So, there LCM is their product i.e 170905
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 4/170905
Therefore, the GCF of Fractions 124/257,640/665 is 4/170905
Least Common Multiple of 257,665 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 257,665 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(257,665) = 1
common factors(in case of two or more numbers have common factors) = 1
GCF(257,665) x common factors =1 x 1 = 1
LCM(257,665) = ( 257 × 665 ) / 1
LCM(257,665) = 170905 / 1
LCM(257,665) = 170905
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FAQs on GCF of Fractions of 124/257, 640/665
1. What is the HCF of 124,640?
The HCF of 124,640 is 4
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 124/257, 640/665?
Answer: GCF of Numerators as per given numbers 124/257, 640/665 is
GCF of Numerators i.e. for 124,640 is 4
LCM of denominators i.e. for 257,665 is 170905.
Thus, GCF of Fractions is 4/170905.Finally, GCF of Fractions for 124/257, 640/665 is 4/170905.