Least Common Multiple of 21, 56, 861

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

• Least Common Multiple of 21, 56, 861 by common division method
• Least Common Multiple of 21, 56, 861 with GCF Formula

∴ So the LCM of the given numbers is 3 x 7 x 1 x 8 x 41 = 6888

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 21,56,861 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(21,56,861) = 7

common factors(in case of two or more numbers have common factors) = 21

GCF(21,56,861) x common factors =7 x 21 = 147

LCM(21,56,861) = ( 21 × 56 × 861 ) / 147

LCM(21,56,861) = 1012536 / 147

LCM(21,56,861) = 6888

∴ Least Common Multiple of 21,56,861 is 6888

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

• LCM of 96, 74, 416
• LCM of 40, 92, 975
• LCM of 41, 73, 661
• LCM of 64, 32, 886
• LCM of 75, 75, 320

1. What is the LCM of 21, 56, 861?

Answer: LCM of 21, 56, 861 is 6888.

2. What are the Factors of 6888?

Answer: Factors of 6888 are . There are integers that are factors of 6888

3. How to Find the LCM of 21, 56, 861 ?

Least Common Multiple of 21, 56, 861.

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, 56, 861) = 2 x 2 x 2 x 3 x 7 x 41 = 6888.