Least Common Multiple of 84, 81, 20, 81

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023


Use the LCM of two or more numbers Calculator to find the Least Common Multiple of numbers 84, 81, 20, 81 i.e. 11340 smallest integer divisible by all numbers.

Least common multiple (LCM) of 84, 81, 20, 81 is 11340.

LCM(84, 81, 20, 81) = 11340

LCM of 84, 81, 20, 81

Least common multiple or lowest common denominator (lcd) can be calculated in three ways

LCM of:

Least Common Multiple of 84,81,20,81

Least Common Multiple (LCM) of 84,81,20,81 is 11340

2 84, 81, 20, 81
2 42, 81, 10, 81
3 21, 81, 5, 81
3 7, 27, 5, 27
3 7, 9, 5, 9
3 7, 3, 5, 3
7, 1, 5, 1

∴ So the LCM of the given numbers is 2 x 2 x 3 x 3 x 3 x 3 x 7 x 1 x 5 x 1 = 11340

Least Common Multiple of 84,81,20,81 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 84,81,20,81 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(84,81,20,81) = 1

common factors(in case of two or more numbers have common factors) = 972

GCF(84,81,20,81) x common factors =1 x 972 = 972

LCM(84,81,20,81) = ( 84 × 81 × 20 × 81 ) / 972

LCM(84,81,20,81) = 11022480 / 972

LCM(84,81,20,81) = 11340

∴ Least Common Multiple of 84,81,20,81 is 11340

LCM of two or more Numbers Calculation Examples

Here are some samples of LCM of two or more Numbers calculations.

Frequently Asked Questions on LCM of 84, 81, 20, 81

1. What is the LCM of 84, 81, 20, 81?

Answer: LCM of 84, 81, 20, 81 is 11340.

2. What are the Factors of 11340?

Answer: Factors of 11340 are . There are integers that are factors of 11340

3. How to Find the LCM of 84, 81, 20, 81 ?

Least Common Multiple of 84, 81, 20, 81.

Step 1: Divide all the numbers with common prime numbers having remainder zero.

Step 2: Then multiply all the prime factors with last row quotient of common division that is LCM(84, 81, 20, 81) = 2 x 2 x 3 x 3 x 3 x 3 x 5 x 7 = 11340.