Least Common Multiple of 21, 71, 121

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

• Least Common Multiple of 21, 71, 121 by common division method
• Least Common Multiple of 21, 71, 121 with GCF Formula

Given numbers has no common factors except 1. So, there LCM is their product i.e 180411

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 21,71,121 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(21,71,121) = 1

common factors(in case of two or more numbers have common factors) = 1

GCF(21,71,121) x common factors =1 x 1 = 1

LCM(21,71,121) = ( 21 × 71 × 121 ) / 1

LCM(21,71,121) = 180411 / 1

LCM(21,71,121) = 180411

∴ Least Common Multiple of 21,71,121 is 180411

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

• LCM of 77, 79, 254
• LCM of 81, 83, 212
• LCM of 84, 69, 766
• LCM of 41, 73, 703
• LCM of 90, 90, 182

1. What is the LCM of 21, 71, 121?

Answer: LCM of 21, 71, 121 is 180411.

2. What are the Factors of 180411?

Answer: Factors of 180411 are . There are integers that are factors of 180411

3. How to Find the LCM of 21, 71, 121 ?

Least Common Multiple of 21, 71, 121.

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, 71, 121) = 3 x 7 x 11 x 11 x 71 = 180411.