Least Common Multiple of 28, 20, 989

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

• Least Common Multiple of 28, 20, 989 by common division method
• Least Common Multiple of 28, 20, 989 with GCF Formula

∴ So the LCM of the given numbers is 2 x 2 x 7 x 5 x 989 = 138460

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 28,20,989 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(28,20,989) = 1

common factors(in case of two or more numbers have common factors) = 4

GCF(28,20,989) x common factors =1 x 4 = 4

LCM(28,20,989) = ( 28 × 20 × 989 ) / 4

LCM(28,20,989) = 553840 / 4

LCM(28,20,989) = 138460

∴ Least Common Multiple of 28,20,989 is 138460

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

• LCM of 71, 80, 372
• LCM of 91, 70, 653
• LCM of 74, 25, 709
• LCM of 70, 72, 619
• LCM of 46, 72, 313

1. What is the LCM of 28, 20, 989?

Answer: LCM of 28, 20, 989 is 138460.

2. What are the Factors of 138460?

Answer: Factors of 138460 are . There are integers that are factors of 138460

3. How to Find the LCM of 28, 20, 989 ?

Least Common Multiple of 28, 20, 989.

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(28, 20, 989) = 2 x 2 x 5 x 7 x 23 x 43 = 138460.