Least Common Multiple of 12, 21, 102

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

• Least Common Multiple of 12, 21, 102 by common division method
• Least Common Multiple of 12, 21, 102 with GCF Formula

∴ So the LCM of the given numbers is 2 x 3 x 2 x 7 x 17 = 1428

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 12,21,102 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(12,21,102) = 3

common factors(in case of two or more numbers have common factors) = 6

GCF(12,21,102) x common factors =3 x 6 = 18

LCM(12,21,102) = ( 12 × 21 × 102 ) / 18

LCM(12,21,102) = 25704 / 18

LCM(12,21,102) = 1428

∴ Least Common Multiple of 12,21,102 is 1428

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

• LCM of 81, 16, 322
• LCM of 37, 76, 870
• LCM of 20, 80, 392
• LCM of 91, 34, 972
• LCM of 36, 93, 153

1. What is the LCM of 12, 21, 102?

Answer: LCM of 12, 21, 102 is 1428.

2. What are the Factors of 1428?

Answer: Factors of 1428 are . There are integers that are factors of 1428

3. How to Find the LCM of 12, 21, 102 ?

Least Common Multiple of 12, 21, 102.

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(12, 21, 102) = 2 x 2 x 3 x 7 x 17 = 1428.