GCF of 728/90, 558/561
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Use our free GCF of Fractions Calculator tool to compute the GCF of 728/90, 558/561 i.e 2/16830 easily. The following is the detailed procedure to determine the greatest common factor of fractions 728/90, 558/561.
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 728/90,558/561?
Given fractions are 728/90,558/561
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 728/90,558/561, numerators are 728,558
Denominators are 90,561
The GCF of 728,558 is 2 .
LCM of 90,561 is 16830.
The greatest common factor of 728/90,558/561 = [GCF of 728,558]/[LCM of 90,561]= 2/16830
Therefore, the GCF of 728/90,558/561 is 2/16830.
To find the highest common factor of 728,558, we have to find the factors of both numbers and list the highest common factor.
The factors of 728 are 1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728
The factors of 558 are 1, 2, 3, 6, 9, 18, 31, 62, 93, 186, 279, 558
The HCF of 728,558 is 2.
Lets's calculate GCF of 728,558
| 2 | 728, 558 |
| 364, 279 |
∴ So the GCF of the given numbers is 2 = 2
Greatest Common Factor of 728,558 By Matching Biggest Common Factor Method
Now, list down the factors of 728
:1,2,4,7,8,13,14,26,28,52,56,91,104,182,364,728
Now, list down the factors of 558
:1,2,3,6,9,18,31,62,93,186,279,558
Greatest Common Factor
We found the factors 728,558 . The biggest common factor number is the GCF number.
So the greatest common factor 728,558 is 2.
Lets's calculate LCM of 90,561
| 3 | 90, 561 |
| 30, 187 |
∴ So the LCM of the given numbers is 3 x 30 x 187 = 16830
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 2/16830
Therefore, the GCF of Fractions 728/90,558/561 is 2/16830
Least Common Multiple of 90,561 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 90,561 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(90,561) = 3
common factors(in case of two or more numbers have common factors) = 1
GCF(90,561) x common factors =3 x 1 = 3
LCM(90,561) = ( 90 × 561 ) / 3
LCM(90,561) = 50490 / 3
LCM(90,561) = 16830
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FAQs on GCF of Fractions of 728/90, 558/561
1. What is the HCF of 728,558?
The HCF of 728,558 is 2
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 728/90, 558/561?
Answer: GCF of Numerators as per given numbers 728/90, 558/561 is
GCF of Numerators i.e. for 728,558 is 2
LCM of denominators i.e. for 90,561 is 16830.
Thus, GCF of Fractions is 2/16830.Finally, GCF of Fractions for 728/90, 558/561 is 2/16830.