Use our free GCF of Fractions Calculator tool to compute the GCF of 628/647, 2185/257 i.e 1/166279 easily. The following is the detailed procedure to determine the greatest common factor of fractions 628/647, 2185/257.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 628/647,2185/257
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 628/647,2185/257, numerators are 628,2185
Denominators are 647,257
The GCF of 628,2185 is 1 .
LCM of 647,257 is 166279.
The greatest common factor of 628/647,2185/257 = [GCF of 628,2185]/[LCM of 647,257]= 1/166279
Therefore, the GCF of 628/647,2185/257 is 1/166279.
To find the highest common factor of 628,2185, we have to find the factors of both numbers and list the highest common factor.
The factors of 628 are 1, 2, 4, 157, 314, 628
The factors of 2185 are 1, 5, 19, 23, 95, 115, 437, 2185
The HCF of 628,2185 is 1.
Lets's calculate GCF of 628,2185
∴ So GCF of numbers is 1 because of no common factors present between them.
Now, list down the factors of 628
:1,2,4,157,314,628
Now, list down the factors of 2185
:1,5,19,23,95,115,437,2185
Greatest Common Factor
We found the factors 628,2185 . The biggest common factor number is the GCF number.
So the greatest common factor 628,2185 is 1.
Lets's calculate LCM of 647,257
Given numbers has no common factors except 1. So, there LCM is their product i.e 166279
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/166279
Therefore, the GCF of Fractions 628/647,2185/257 is 1/166279
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 647,257 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(647,257) = 1
common factors(in case of two or more numbers have common factors) = 1
GCF(647,257) x common factors =1 x 1 = 1
LCM(647,257) = ( 647 × 257 ) / 1
LCM(647,257) = 166279 / 1
LCM(647,257) = 166279
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 628,2185?
The HCF of 628,2185 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 628/647, 2185/257?
Answer: GCF of Numerators as per given numbers 628/647, 2185/257 is
GCF of Numerators i.e. for 628,2185 is 1
LCM of denominators i.e. for 647,257 is 166279.
Thus, GCF of Fractions is 1/166279.Finally, GCF of Fractions for 628/647, 2185/257 is 1/166279.