Least Common Multiple of 31/21, 628/81, 905/445

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023

Know Least Common Multiple of fractions 31/21, 628/81, 905/445 quickly i.e. 17618540 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.

Least Common Multiple (LCM) of 31/21, 628/81, 905/445 is 17618540.

LCM(31/21, 628/81, 905/445) = 17618540

LCM of 31/21, 628/81, 905/445

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 31/21,628/81,905/445

Given numbers are 31/21,628/81,905/445

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 31,628,905

Least Common Multiple of Numerators i.e. LCM of 31,628,905 is 17618540.

GCF of Denominators means GCF of 21,81,445 as per the given fractions.

GCF of 21,81,445 is 1 as it is the largest common factor for these numbers.

Lets's calculate LCM of 31,628,905

LCM of Fractions 31/21,628/81,905/445 is 17618540

Given numbers has no common factors except 1. So, there LCM is their product i.e 17618540

Least Common Multiple of 31,628,905 with GCF Formula

Least Common Multiple of 31,628,905 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 31,628,905 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(31,628,905) = 1

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

GCF(31,628,905) x common factors =1 x 1 = 1

LCM(31,628,905) = ( 31 × 628 × 905 ) / 1

LCM(31,628,905) = 17618540 / 1

LCM(31,628,905) = 17618540


Lets's calculate GCF of 21,81,445

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

Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 17618540/1

Therefore the LCM of Fractions 31/21,628/81,905/445 is 17618540

Greatest Common Factor of 21,81,445 By Matching Biggest Common Factor Method

Greatest Common Factor of 21,81,445 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 81

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

1,3,9,27,81

Factors of 445

List of positive integer factors of 445 that divides 445 without a remainder.

1,5,89,445

Greatest Common Factor

We found the factors 21,81,445 . The biggest common factor number is the GCF number.
So the greatest common factor 21,81,445 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 31/21, 628/81, 905/445

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 31/21, 628/81, 905/445?

Answer: LCM of Numerators as per given numbers 31/21, 628/81, 905/445 is

LCM of Numerators i.e. for 31,628,905 is 17618540

GCF of denominators i.e. for 21,81,445 is 1.

Thus, LCM of Fractions is 17618540.Finally, LCM of Fractions for 31/21, 628/81, 905/445 is 17618540.