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GCF of 72/391, 51/546, 189/661

Created By : Veerendra
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023


Use our free GCF of Fractions Calculator tool to compute the GCF of 72/391, 51/546, 189/661 i.e 3/141114246 easily. The following is the detailed procedure to determine the greatest common factor of fractions 72/391, 51/546, 189/661.

Enter two or more fractions separated by "commas"

Ex: 2/3, 5/7 or 3/5, 5/9, 7/3

GCF of:

What is the GCF of 72/391,51/546,189/661?

Given fractions are 72/391,51/546,189/661

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 72/391,51/546,189/661, numerators are 72,51,189

Denominators are 391,546,661

The GCF of 72,51,189 is 3 .

LCM of 391,546,661 is 141114246.

The greatest common factor of 72/391,51/546,189/661 = [GCF of 72,51,189]/[LCM of 391,546,661]= 3/141114246

Therefore, the GCF of 72/391,51/546,189/661 is 3/141114246.

Greatest Common Factor of 72,51,189

To find the highest common factor of 72,51,189, we have to find the factors of both numbers and list the highest common factor.

The factors of 72 are 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72

The factors of 51 are 1, 3, 17, 51

The factors of 189 are 1, 3, 7, 9, 21, 27, 63, 189

The HCF of 72,51,189 is 3.

Lets's calculate GCF of 72,51,189

Greatest Common Factor (GCF) of 72,51,189 By Common Division

3 72, 51, 189
24, 17, 63

∴ So the GCF of the given numbers is 3 = 3

Greatest Common Factor of 72,51,189 By Matching Biggest Common Factor Method

Greatest Common Factor of 72,51,189 By Matching Biggest Common Factor Method

Now, list down the factors of 72

:

1,2,3,4,6,8,9,12,18,24,36,72

Now, list down the factors of 51

:

1,3,17,51

Now, list down the factors of 189

:

1,3,7,9,21,27,63,189

Greatest Common Factor

We found the factors 72,51,189 . The biggest common factor number is the GCF number.
So the greatest common factor 72,51,189 is 3.


Lets's calculate LCM of 391,546,661

Lowest Common Multiple of 391,546,661 using Common Division

Given numbers has no common factors except 1. So, there LCM is their product i.e 141114246

Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 3/141114246

Therefore, the GCF of Fractions 72/391,51/546,189/661 is 3/141114246

Least Common Multiple of 391,546,661 with GCF Formula

Least Common Multiple of 391,546,661 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 391,546,661 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(391,546,661) = 1

common factors(in case of two or more numbers have common factors) = 1

GCF(391,546,661) x common factors =1 x 1 = 1

LCM(391,546,661) = ( 391 × 546 × 661 ) / 1

LCM(391,546,661) = 141114246 / 1

LCM(391,546,661) = 141114246


GCF of Fractions Calculation Examples

FAQs on GCF of Fractions of 72/391, 51/546, 189/661

1. What is the HCF of 72,51,189?

The HCF of 72,51,189 is 3

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 72/391, 51/546, 189/661?

Answer: GCF of Numerators as per given numbers 72/391, 51/546, 189/661 is

GCF of Numerators i.e. for 72,51,189 is 3

LCM of denominators i.e. for 391,546,661 is 141114246.

Thus, GCF of Fractions is 3/141114246.Finally, GCF of Fractions for 72/391, 51/546, 189/661 is 3/141114246.