Least Common Multiple of 640/20, 174/14, 311/689

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023

Know Least Common Multiple of fractions 640/20, 174/14, 311/689 quickly i.e. 17316480 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.

Least Common Multiple (LCM) of 640/20, 174/14, 311/689 is 17316480.

LCM(640/20, 174/14, 311/689) = 17316480

LCM of 640/20, 174/14, 311/689

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 640/20,174/14,311/689

Given numbers are 640/20,174/14,311/689

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 640,174,311

Least Common Multiple of Numerators i.e. LCM of 640,174,311 is 17316480.

GCF of Denominators means GCF of 20,14,689 as per the given fractions.

GCF of 20,14,689 is 1 as it is the largest common factor for these numbers.

Lets's calculate LCM of 640,174,311

LCM of Fractions 640/20,174/14,311/689 is 17316480

2 640, 174, 311
320, 87, 311

∴ So the LCM of the given numbers is 2 x 320 x 87 x 311 = 17316480

Least Common Multiple of 640,174,311 with GCF Formula

Least Common Multiple of 640,174,311 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 640,174,311 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(640,174,311) = 1

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

GCF(640,174,311) x common factors =1 x 2 = 2

LCM(640,174,311) = ( 640 × 174 × 311 ) / 2

LCM(640,174,311) = 34632960 / 2

LCM(640,174,311) = 17316480


Lets's calculate GCF of 20,14,689

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

Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 17316480/1

Therefore the LCM of Fractions 640/20,174/14,311/689 is 17316480

Greatest Common Factor of 20,14,689 By Matching Biggest Common Factor Method

Greatest Common Factor of 20,14,689 By Matching Biggest Common Factor Method

Factors of 20

List of positive integer factors of 20 that divides 20 without a remainder.

1,2,4,5,10,20

Factors of 14

List of positive integer factors of 14 that divides 14 without a remainder.

1,2,7,14

Factors of 689

List of positive integer factors of 689 that divides 689 without a remainder.

1,13,53,689

Greatest Common Factor

We found the factors 20,14,689 . The biggest common factor number is the GCF number.
So the greatest common factor 20,14,689 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 640/20, 174/14, 311/689

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 640/20, 174/14, 311/689?

Answer: LCM of Numerators as per given numbers 640/20, 174/14, 311/689 is

LCM of Numerators i.e. for 640,174,311 is 17316480

GCF of denominators i.e. for 20,14,689 is 1.

Thus, LCM of Fractions is 17316480.Finally, LCM of Fractions for 640/20, 174/14, 311/689 is 17316480.