Least Common Multiple of 128/21, 407/79, 818/392

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023

Know Least Common Multiple of fractions 128/21, 407/79, 818/392 quickly i.e. 21307264 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.

Least Common Multiple (LCM) of 128/21, 407/79, 818/392 is 21307264.

LCM(128/21, 407/79, 818/392) = 21307264

LCM of 128/21, 407/79, 818/392

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 128/21,407/79,818/392

Given numbers are 128/21,407/79,818/392

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 128,407,818

Least Common Multiple of Numerators i.e. LCM of 128,407,818 is 21307264.

GCF of Denominators means GCF of 21,79,392 as per the given fractions.

GCF of 21,79,392 is 1 as it is the largest common factor for these numbers.

Lets's calculate LCM of 128,407,818

LCM of Fractions 128/21,407/79,818/392 is 21307264

2 128, 407, 818
64, 407, 409

∴ So the LCM of the given numbers is 2 x 64 x 407 x 409 = 21307264

Least Common Multiple of 128,407,818 with GCF Formula

Least Common Multiple of 128,407,818 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 128,407,818 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(128,407,818) = 1

common factors(in case of two or more numbers have common factors) = 2

GCF(128,407,818) x common factors =1 x 2 = 2

LCM(128,407,818) = ( 128 × 407 × 818 ) / 2

LCM(128,407,818) = 42614528 / 2

LCM(128,407,818) = 21307264


Lets's calculate GCF of 21,79,392

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

Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 21307264/1

Therefore the LCM of Fractions 128/21,407/79,818/392 is 21307264

Greatest Common Factor of 21,79,392 By Matching Biggest Common Factor Method

Greatest Common Factor of 21,79,392 By Matching Biggest Common Factor Method

Factors of 21

List of positive integer factors of 21 that divides 21 without a remainder.

1,3,7,21

Factors of 79

List of positive integer factors of 79 that divides 79 without a remainder.

1,79

Factors of 392

List of positive integer factors of 392 that divides 392 without a remainder.

1,2,4,7,8,14,28,49,56,98,196,392

Greatest Common Factor

We found the factors 21,79,392 . The biggest common factor number is the GCF number.
So the greatest common factor 21,79,392 is 1.


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 128/21, 407/79, 818/392

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 128/21, 407/79, 818/392?

Answer: LCM of Numerators as per given numbers 128/21, 407/79, 818/392 is

LCM of Numerators i.e. for 128,407,818 is 21307264

GCF of denominators i.e. for 21,79,392 is 1.

Thus, LCM of Fractions is 21307264.Finally, LCM of Fractions for 128/21, 407/79, 818/392 is 21307264.