Least Common Multiple of 210, 490, 21

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

• Least Common Multiple of 210, 490, 21 by common division method
• Least Common Multiple of 210, 490, 21 with GCF Formula

∴ So the LCM of the given numbers is 2 x 3 x 5 x 7 x 1 x 1 x 7 = 1470

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 210,490,21 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(210,490,21) = 7

common factors(in case of two or more numbers have common factors) = 210

GCF(210,490,21) x common factors =7 x 210 = 1470

LCM(210,490,21) = ( 210 × 490 × 21 ) / 1470

LCM(210,490,21) = 2160900 / 1470

LCM(210,490,21) = 1470

∴ Least Common Multiple of 210,490,21 is 1470

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

• LCM of 995, 323, 21
• LCM of 211, 420, 70
• LCM of 913, 805, 81
• LCM of 171, 973, 17
• LCM of 123, 984, 36

1. What is the LCM of 210, 490, 21?

Answer: LCM of 210, 490, 21 is 1470.

2. What are the Factors of 1470?

Answer: Factors of 1470 are . There are integers that are factors of 1470

3. How to Find the LCM of 210, 490, 21 ?

Least Common Multiple of 210, 490, 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(210, 490, 21) = 2 x 3 x 5 x 7 x 7 = 1470.