Least Common Multiple of 20, 40, 72, 129

Q: How to Find the LCM of 20, 40, 72, 129 ?

Least Common Multiple of 20, 40, 72, 129 = 15480 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(20, 40, 72, 129) = 2 x 2 x 2 x 3 x 3 x 5 x 43 = 15480.

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 20, 40, 72, 129 i.e. 15480 smallest integer divisible by all numbers.

Least common multiple (LCM) of 20, 40, 72, 129 is 15480.

LCM(20, 40, 72, 129) = 15480

LCM of 20, 40, 72, 129

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

Least Common Multiple of 20, 40, 72, 129 by common division method
Least Common Multiple of 20, 40, 72, 129 with GCF Formula

Least Common Multiple of 20,40,72,129

Least Common Multiple (LCM) of 20,40,72,129 is 15480

2	20, 40, 72, 129
2	10, 20, 36, 129
2	5, 10, 18, 129
3	5, 5, 9, 129
5	5, 5, 3, 43
	1, 1, 3, 43

∴ So the LCM of the given numbers is 2 x 2 x 2 x 3 x 5 x 1 x 1 x 3 x 43 = 15480

Least Common Multiple of 20,40,72,129 with GCF Formula

The formula of LCM is LCM(a₁,a₂,a₃....,a_n) = ( a₁ × a₂ × a₃ × .... × a_n) / GCF(a₁,a₂,a₃....,a_n) x common factors(if more than 2 numbers have common factors).

We need to calculate greatest common factor of 20,40,72,129 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(20,40,72,129) = 1

common factors(in case of two or more numbers have common factors) = 480

GCF(20,40,72,129) x common factors =1 x 480 = 480

LCM(20,40,72,129) = ( 20 × 40 × 72 × 129 ) / 480

LCM(20,40,72,129) = 7430400 / 480

LCM(20,40,72,129) = 15480

∴ Least Common Multiple of 20,40,72,129 is 15480

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 20, 40, 72, 129

1. What is the LCM of 20, 40, 72, 129?

Answer: LCM of 20, 40, 72, 129 is 15480.

2. What are the Factors of 15480?

Answer: Factors of 15480 are . There are integers that are factors of 15480

3. How to Find the LCM of 20, 40, 72, 129 ?

Least Common Multiple of 20, 40, 72, 129.

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(20, 40, 72, 129) = 2 x 2 x 2 x 3 x 3 x 5 x 43 = 15480.