Least Common Multiple of 70, 42, 82, 21

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

• Least Common Multiple of 70, 42, 82, 21 by common division method
• Least Common Multiple of 70, 42, 82, 21 with GCF Formula

∴ So the LCM of the given numbers is 2 x 3 x 7 x 5 x 1 x 41 x 1 = 8610

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 70,42,82,21 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(70,42,82,21) = 1

common factors(in case of two or more numbers have common factors) = 588

GCF(70,42,82,21) x common factors =1 x 588 = 588

LCM(70,42,82,21) = ( 70 × 42 × 82 × 21 ) / 588

LCM(70,42,82,21) = 5062680 / 588

LCM(70,42,82,21) = 8610

∴ Least Common Multiple of 70,42,82,21 is 8610

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

• LCM of 11, 90, 49, 73
• LCM of 33, 73, 75, 70
• LCM of 11, 27, 20, 91
• LCM of 62, 46, 13, 14
• LCM of 92, 25, 18, 87

1. What is the LCM of 70, 42, 82, 21?

Answer: LCM of 70, 42, 82, 21 is 8610.

2. What are the Factors of 8610?

Answer: Factors of 8610 are . There are integers that are factors of 8610

3. How to Find the LCM of 70, 42, 82, 21 ?

Least Common Multiple of 70, 42, 82, 21.

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(70, 42, 82, 21) = 2 x 3 x 5 x 7 x 41 = 8610.