Least Common Multiple of 21, 63, 387

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

• Least Common Multiple of 21, 63, 387 by common division method
• Least Common Multiple of 21, 63, 387 with GCF Formula

∴ So the LCM of the given numbers is 3 x 3 x 7 x 1 x 1 x 43 = 2709

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 21,63,387 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(21,63,387) = 3

common factors(in case of two or more numbers have common factors) = 63

GCF(21,63,387) x common factors =3 x 63 = 189

LCM(21,63,387) = ( 21 × 63 × 387 ) / 189

LCM(21,63,387) = 512001 / 189

LCM(21,63,387) = 2709

∴ Least Common Multiple of 21,63,387 is 2709

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

• LCM of 53, 91, 861
• LCM of 84, 68, 108
• LCM of 42, 64, 804
• LCM of 96, 23, 843
• LCM of 35, 42, 373

1. What is the LCM of 21, 63, 387?

Answer: LCM of 21, 63, 387 is 2709.

2. What are the Factors of 2709?

Answer: Factors of 2709 are . There are integers that are factors of 2709

3. How to Find the LCM of 21, 63, 387 ?

Least Common Multiple of 21, 63, 387.

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(21, 63, 387) = 3 x 3 x 7 x 43 = 2709.