Least Common Multiple of 18, 72, 85, 35, 84

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 18, 72, 85, 35, 84 i.e. 42840 smallest integer divisible by all numbers.

Least common multiple (LCM) of 18, 72, 85, 35, 84 is 42840.

LCM(18, 72, 85, 35, 84) = 42840

LCM of 18, 72, 85, 35, 84

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

LCM of:

Least Common Multiple of 18,72,85,35,84

Least Common Multiple (LCM) of 18,72,85,35,84 is 42840

2 18, 72, 85, 35, 84
2 9, 36, 85, 35, 42
3 9, 18, 85, 35, 21
3 3, 6, 85, 35, 7
5 1, 2, 85, 35, 7
7 1, 2, 17, 7, 7
1, 2, 17, 1, 1

∴ So the LCM of the given numbers is 2 x 2 x 3 x 3 x 5 x 7 x 1 x 2 x 17 x 1 x 1 = 42840

Least Common Multiple of 18,72,85,35,84 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 18,72,85,35,84 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(18,72,85,35,84) = 1

common factors(in case of two or more numbers have common factors) = 7560

GCF(18,72,85,35,84) x common factors =1 x 7560 = 7560

LCM(18,72,85,35,84) = ( 18 × 72 × 85 × 35 × 84 ) / 7560

LCM(18,72,85,35,84) = 323870400 / 7560

LCM(18,72,85,35,84) = 42840

∴ Least Common Multiple of 18,72,85,35,84 is 42840

LCM of two or more Numbers Calculation Examples

Frequently Asked Questions on LCM of 18, 72, 85, 35, 84

1. What is the LCM of 18, 72, 85, 35, 84?

Answer: LCM of 18, 72, 85, 35, 84 is 42840.

2. What are the Factors of 42840?

Answer: Factors of 42840 are . There are integers that are factors of 42840

3. How to Find the LCM of 18, 72, 85, 35, 84 ?

Least Common Multiple of 18, 72, 85, 35, 84.

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(18, 72, 85, 35, 84) = 2 x 2 x 2 x 3 x 3 x 5 x 7 x 17 = 42840.