Least Common Multiple of 21, 39, 57, 903

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

• Least Common Multiple of 21, 39, 57, 903 by common division method
• Least Common Multiple of 21, 39, 57, 903 with GCF Formula

∴ So the LCM of the given numbers is 3 x 7 x 1 x 13 x 19 x 43 = 223041

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 21,39,57,903 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(21,39,57,903) = 3

common factors(in case of two or more numbers have common factors) = 63

GCF(21,39,57,903) x common factors =3 x 63 = 189

LCM(21,39,57,903) = ( 21 × 39 × 57 × 903 ) / 189

LCM(21,39,57,903) = 42154749 / 189

LCM(21,39,57,903) = 223041

∴ Least Common Multiple of 21,39,57,903 is 223041

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

• LCM of 97, 39, 36, 952
• LCM of 85, 65, 75, 527
• LCM of 73, 17, 40, 194
• LCM of 79, 65, 45, 632
• LCM of 48, 33, 51, 290

1. What is the LCM of 21, 39, 57, 903?

Answer: LCM of 21, 39, 57, 903 is 223041.

2. What are the Factors of 223041?

Answer: Factors of 223041 are . There are integers that are factors of 223041

3. How to Find the LCM of 21, 39, 57, 903 ?

Least Common Multiple of 21, 39, 57, 903.

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, 39, 57, 903) = 3 x 7 x 13 x 19 x 43 = 223041.