Least Common Multiple of 84, 21, 84

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

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

∴ So the LCM of the given numbers is 2 x 2 x 3 x 7 x 1 x 1 x 1 = 84

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

GCF(84,21,84) = 21

common factors(in case of two or more numbers have common factors) = 84

GCF(84,21,84) x common factors =21 x 84 = 1764

LCM(84,21,84) = ( 84 × 21 × 84 ) / 1764

LCM(84,21,84) = 148176 / 1764

LCM(84,21,84) = 84

∴ Least Common Multiple of 84,21,84 is 84

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

• LCM of 35, 60, 58
• LCM of 71, 35, 76
• LCM of 57, 44, 71
• LCM of 52, 24, 27
• LCM of 91, 97, 48

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

Answer: LCM of 84, 21, 84 is 84.

2. What are the Factors of 84?

Answer: Factors of 84 are . There are integers that are factors of 84

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

Least Common Multiple of 84, 21, 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(84, 21, 84) = 2 x 2 x 3 x 7 = 84.