Least Common Multiple (LCM) of 189 and 23
The least common multiple (LCM) of 189 and 23 is 4347.
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 189 and 23?
First, calculate the GCD of 189 and 23 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 189 ÷ 23 = 8 remainder 5 |
| 2 | 23 ÷ 5 = 4 remainder 3 |
| 3 | 5 ÷ 3 = 1 remainder 2 |
| 4 | 3 ÷ 2 = 1 remainder 1 |
| 5 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 16 and 111 | 1776 |
| 167 and 180 | 30060 |
| 69 and 56 | 3864 |
| 154 and 176 | 1232 |
| 110 and 116 | 6380 |