Least Common Multiple of 84, 81, 21, 36

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

• Least Common Multiple of 84, 81, 21, 36 by common division method
• Least Common Multiple of 84, 81, 21, 36 with GCF Formula

∴ So the LCM of the given numbers is 2 x 2 x 3 x 3 x 7 x 1 x 9 x 1 x 1 = 2268

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 84,81,21,36 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(84,81,21,36) = 3

common factors(in case of two or more numbers have common factors) = 756

GCF(84,81,21,36) x common factors =3 x 756 = 2268

LCM(84,81,21,36) = ( 84 × 81 × 21 × 36 ) / 2268

LCM(84,81,21,36) = 5143824 / 2268

LCM(84,81,21,36) = 2268

∴ Least Common Multiple of 84,81,21,36 is 2268

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

• LCM of 13, 87, 79, 11
• LCM of 52, 25, 12, 68
• LCM of 71, 38, 85, 76
• LCM of 88, 61, 89, 93
• LCM of 17, 54, 30, 94

1. What is the LCM of 84, 81, 21, 36?

Answer: LCM of 84, 81, 21, 36 is 2268.

2. What are the Factors of 2268?

Answer: Factors of 2268 are . There are integers that are factors of 2268

3. How to Find the LCM of 84, 81, 21, 36 ?

Least Common Multiple of 84, 81, 21, 36.

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, 21, 36) = 2 x 2 x 3 x 3 x 3 x 3 x 7 = 2268.