Least Common Multiple of 1, 21, 687

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

• Least Common Multiple of 1, 21, 687 by common division method
• Least Common Multiple of 1, 21, 687 with GCF Formula

∴ So the LCM of the given numbers is 3 x 1 x 7 x 229 = 4809

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 1,21,687 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(1,21,687) = 1

common factors(in case of two or more numbers have common factors) = 3

GCF(1,21,687) x common factors =1 x 3 = 3

LCM(1,21,687) = ( 1 × 21 × 687 ) / 3

LCM(1,21,687) = 14427 / 3

LCM(1,21,687) = 4809

∴ Least Common Multiple of 1,21,687 is 4809

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

• LCM of 4, 56, 548
• LCM of 9, 46, 129
• LCM of 7, 45, 577
• LCM of 1, 14, 339
• LCM of 9, 31, 413

1. What is the LCM of 1, 21, 687?

Answer: LCM of 1, 21, 687 is 4809.

2. What are the Factors of 4809?

Answer: Factors of 4809 are . There are integers that are factors of 4809

3. How to Find the LCM of 1, 21, 687 ?

Least Common Multiple of 1, 21, 687.

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(1, 21, 687) = 3 x 7 x 229 = 4809.