Least Common Multiple (LCM) of 18 and 99
The least common multiple (LCM) of 18 and 99 is 198.
What is the Least Common Multiple (LCM)?
The LCM of two integers is the smallest positive integer that is divisible by both numbers. It is often used to find common denominators and solve problems involving periodic events.
Formula for LCM
The LCM of two numbers can be calculated using their GCD:
LCM(a, b) = |a × b| ÷ GCD(a, b)
How to Calculate the LCM of 18 and 99?
First, calculate the GCD of 18 and 99 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 18 ÷ 99 = 0 remainder 18 |
| 2 | 99 ÷ 18 = 5 remainder 9 |
| 3 | 18 ÷ 9 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 123 and 84 | 3444 |
| 165 and 26 | 4290 |
| 24 and 35 | 840 |
| 94 and 51 | 4794 |
| 92 and 172 | 3956 |