Least Common Multiple of 636/57, 399/81, 643/72

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023

Know Least Common Multiple of fractions 636/57, 399/81, 643/72 quickly i.e. 18130028 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.

Least Common Multiple (LCM) of 636/57, 399/81, 643/72 is 18130028.

LCM(636/57, 399/81, 643/72) = 18130028

LCM of 636/57, 399/81, 643/72

Enter two or more fractions separated by "commas"

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

LCM of:

Least Common Multiple of 636/57,399/81,643/72

Given numbers are 636/57,399/81,643/72

Formula to find LCM of Fractions is

LCM = LCM of Numerators/GCF of Denominators

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

In the given fractions LCM of Numerators means LCM of 636,399,643

Least Common Multiple of Numerators i.e. LCM of 636,399,643 is 54390084.

GCF of Denominators means GCF of 57,81,72 as per the given fractions.

GCF of 57,81,72 is 3 as it is the largest common factor for these numbers.

Lets's calculate LCM of 636,399,643

LCM of Fractions 636/57,399/81,643/72 is 18130028

3 636, 399, 643
212, 133, 643

∴ So the LCM of the given numbers is 3 x 212 x 133 x 643 = 54390084

Least Common Multiple of 636,399,643 with GCF Formula

Least Common Multiple of 636,399,643 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 636,399,643 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(636,399,643) = 1

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

GCF(636,399,643) x common factors =1 x 3 = 3

LCM(636,399,643) = ( 636 × 399 × 643 ) / 3

LCM(636,399,643) = 163170252 / 3

LCM(636,399,643) = 54390084


Lets's calculate GCF of 57,81,72

3 57, 81, 72
19, 27, 24

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

Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 54390084/3

Therefore the LCM of Fractions 636/57,399/81,643/72 is 18130028

Greatest Common Factor of 57,81,72 By Matching Biggest Common Factor Method

Greatest Common Factor of 57,81,72 By Matching Biggest Common Factor Method

Factors of 57

List of positive integer factors of 57 that divides 57 without a remainder.

1,3,19,57

Factors of 81

List of positive integer factors of 81 that divides 81 without a remainder.

1,3,9,27,81

Factors of 72

List of positive integer factors of 72 that divides 72 without a remainder.

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

Greatest Common Factor

We found the factors 57,81,72 . The biggest common factor number is the GCF number.
So the greatest common factor 57,81,72 is 3.


LCM of Fractions Calculation Examples

Here are some samples of LCM of Fractions calculations.

LCM of Fractions Calculation Examples

Here are some samples of LCM of Fractions calculations.

Frequently Asked Questions on Fractional LCM of 636/57, 399/81, 643/72

1. How to find LCM in Fractions?

Answer: LCM of fractions can be found using the simple formula LCM of Fractions = LCM of Numerators/GCF of Denominators.

2. What is the LCM of Fractions for 636/57, 399/81, 643/72?

Answer: LCM of Numerators as per given numbers 636/57, 399/81, 643/72 is

LCM of Numerators i.e. for 636,399,643 is 54390084

GCF of denominators i.e. for 57,81,72 is 3.

Thus, LCM of Fractions is 18130028.Finally, LCM of Fractions for 636/57, 399/81, 643/72 is 18130028.