Least Common Multiple (LCM) of 18 and 33
The least common multiple (LCM) of 18 and 33 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 33?
First, calculate the GCD of 18 and 33 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 18 ÷ 33 = 0 remainder 18 |
| 2 | 33 ÷ 18 = 1 remainder 15 |
| 3 | 18 ÷ 15 = 1 remainder 3 |
| 4 | 15 ÷ 3 = 5 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 121 and 150 | 18150 |
| 146 and 173 | 25258 |
| 129 and 175 | 22575 |
| 46 and 120 | 2760 |
| 143 and 111 | 15873 |