Least Common Multiple of 81, 69, 42, 84

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

• Least Common Multiple of 81, 69, 42, 84 by common division method
• Least Common Multiple of 81, 69, 42, 84 with GCF Formula

∴ So the LCM of the given numbers is 2 x 3 x 7 x 27 x 23 x 1 x 2 = 52164

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 81,69,42,84 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(81,69,42,84) = 3

common factors(in case of two or more numbers have common factors) = 126

GCF(81,69,42,84) x common factors =3 x 126 = 378

LCM(81,69,42,84) = ( 81 × 69 × 42 × 84 ) / 378

LCM(81,69,42,84) = 19717992 / 378

LCM(81,69,42,84) = 52164

∴ Least Common Multiple of 81,69,42,84 is 52164

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

• LCM of 77, 23, 31, 21
• LCM of 42, 70, 32, 54
• LCM of 89, 73, 76, 67
• LCM of 32, 56, 14, 87
• LCM of 94, 10, 67, 10

1. What is the LCM of 81, 69, 42, 84?

Answer: LCM of 81, 69, 42, 84 is 52164.

2. What are the Factors of 52164?

Answer: Factors of 52164 are . There are integers that are factors of 52164

3. How to Find the LCM of 81, 69, 42, 84 ?

Least Common Multiple of 81, 69, 42, 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(81, 69, 42, 84) = 2 x 2 x 3 x 3 x 3 x 3 x 7 x 23 = 52164.