Least Common Multiple of 21, 638

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

• Least Common Multiple of 21, 638 by common division method
• Least Common Multiple of 21, 638 with GCF Formula

Given numbers has no common factors except 1. So, there LCM is their product i.e 13398

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 21,638 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(21,638) = 1

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

GCF(21,638) x common factors =1 x 1 = 1

LCM(21,638) = ( 21 × 638 ) / 1

LCM(21,638) = 13398 / 1

LCM(21,638) = 13398

∴ Least Common Multiple of 21,638 is 13398

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

• LCM of 19, 512
• LCM of 72, 540
• LCM of 54, 904
• LCM of 38, 352
• LCM of 67, 580

1. What is the LCM of 21, 638?

Answer: LCM of 21, 638 is 13398.

2. What are the Factors of 13398?

Answer: Factors of 13398 are . There are integers that are factors of 13398

3. How to Find the LCM of 21, 638 ?

Least Common Multiple of 21, 638.

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, 638) = 2 x 3 x 7 x 11 x 29 = 13398.