Least Common Multiple of 55, 90, 10, 20

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

• Least Common Multiple of 55, 90, 10, 20 by common division method
• Least Common Multiple of 55, 90, 10, 20 with GCF Formula

∴ So the LCM of the given numbers is 2 x 5 x 11 x 9 x 1 x 2 = 1980

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 55,90,10,20 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(55,90,10,20) = 5

common factors(in case of two or more numbers have common factors) = 100

GCF(55,90,10,20) x common factors =5 x 100 = 500

LCM(55,90,10,20) = ( 55 × 90 × 10 × 20 ) / 500

LCM(55,90,10,20) = 990000 / 500

LCM(55,90,10,20) = 1980

∴ Least Common Multiple of 55,90,10,20 is 1980

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

• LCM of 77, 49, 76, 92
• LCM of 21, 66, 68, 81
• LCM of 31, 63, 17, 51
• LCM of 84, 61, 19, 50
• LCM of 31, 16, 54, 32

1. What is the LCM of 55, 90, 10, 20?

Answer: LCM of 55, 90, 10, 20 is 1980.

2. What are the Factors of 1980?

Answer: Factors of 1980 are . There are integers that are factors of 1980

3. How to Find the LCM of 55, 90, 10, 20 ?

Least Common Multiple of 55, 90, 10, 20.

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(55, 90, 10, 20) = 2 x 2 x 3 x 3 x 5 x 11 = 1980.