Least Common Multiple (LCM) of 189 and 67
The least common multiple (LCM) of 189 and 67 is 12663.
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 67?
First, calculate the GCD of 189 and 67 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 189 ÷ 67 = 2 remainder 55 |
| 2 | 67 ÷ 55 = 1 remainder 12 |
| 3 | 55 ÷ 12 = 4 remainder 7 |
| 4 | 12 ÷ 7 = 1 remainder 5 |
| 5 | 7 ÷ 5 = 1 remainder 2 |
| 6 | 5 ÷ 2 = 2 remainder 1 |
| 7 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 55 and 29 | 1595 |
| 12 and 136 | 408 |
| 130 and 23 | 2990 |
| 156 and 114 | 2964 |
| 45 and 74 | 3330 |