Greatest Common Factor of 197/70, 561/69, 420/309

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023


GCF of 197/70, 561/69, 420/309

Enter two or more fractions separated by "commas"

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

GCF of:

Greatest Common Factor of 197/70,561/69,420/309

Given fractions are 197/70,561/69,420/309

Formula to find GCF of Fractions is

GCF = GCF of Numerators/LCM of Denominators

As per the formula GCF of Fractions let’s split into two parts and find the GCF of Numerators and LCM of Denominators

In the given fractions GCF of Numerators means GCF of 197,561,420

Greatest Common Factor of Numerators i.e. GCF of 197,561,420 is 1 .

LCM of Denominators means LCM of 70,69,309 as per the given fractions.

LCM of 70,69,309 is 497490 as it is the smallest common factor for both these numbers.

Lets's calculate GCF of 197,561,420

GCF of Fractions 197/70,561/69,420/309 is 1/497490

∴ So GCF of numbers is 1 because of no common factors present between them.

Greatest Common Factor of 197,561,420 By Matching Biggest Common Factor Method

Greatest Common Factor of 197,561,420 By Matching Biggest Common Factor Method

Factors of 197

List of positive integer factors of 197 that divides 197 without a remainder.

1,197

Factors of 561

List of positive integer factors of 561 that divides 561 without a remainder.

1,3,11,17,33,51,187,561

Factors of 420

List of positive integer factors of 420 that divides 420 without a remainder.

1,2,3,4,5,6,7,10,12,14,15,20,21,28,30,35,42,60,70,84,105,140,210,420

Greatest Common Factor

We found the factors 197,561,420 . The biggest common factor number is the GCF number.
So the greatest common factor 197,561,420 is 1.


Lets's calculate LCM of 70,69,309

3 70, 69, 309
70, 23, 103

∴ So the LCM of the given numbers is 3 x 70 x 23 x 103 = 497490

Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/497490

Therefore, the GCF of Fractions 197/70,561/69,420/309 is 1/497490

Least Common Multiple of 70,69,309 with GCF Formula

Least Common Multiple of 70,69,309 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 70,69,309 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(70,69,309) = 1

common factors(in case of two or more numbers have common factors) = 3

GCF(70,69,309) x common factors =1 x 3 = 3

LCM(70,69,309) = ( 70 × 69 × 309 ) / 3

LCM(70,69,309) = 1492470 / 3

LCM(70,69,309) = 497490


GCF of Fractions Calculation Examples

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GCF of Fractions Calculation Examples

Frequently Asked Questions on Fractional GCF of 197/70, 561/69, 420/309

1. 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.

2. What is the GCF of Fractions for 197/70, 561/69, 420/309?

Answer: GCF of Numerators as per given numbers 197/70, 561/69, 420/309 is

GCF of Numerators i.e. for 197,561,420 is 1

LCM of denominators i.e. for 70,69,309 is 497490.

Thus, GCF of Fractions is 1/497490.Finally, GCF of Fractions for 197/70, 561/69, 420/309 is 1/497490.