Least Common Multiple (LCM) of 188 and 109
The least common multiple (LCM) of 188 and 109 is 20492.
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 188 and 109?
First, calculate the GCD of 188 and 109 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 188 ÷ 109 = 1 remainder 79 |
| 2 | 109 ÷ 79 = 1 remainder 30 |
| 3 | 79 ÷ 30 = 2 remainder 19 |
| 4 | 30 ÷ 19 = 1 remainder 11 |
| 5 | 19 ÷ 11 = 1 remainder 8 |
| 6 | 11 ÷ 8 = 1 remainder 3 |
| 7 | 8 ÷ 3 = 2 remainder 2 |
| 8 | 3 ÷ 2 = 1 remainder 1 |
| 9 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 39 and 148 | 5772 |
| 142 and 92 | 6532 |
| 34 and 81 | 2754 |
| 23 and 60 | 1380 |
| 163 and 60 | 9780 |