Least Common Multiple (LCM) of 115 and 195
The least common multiple (LCM) of 115 and 195 is 4485.
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 115 and 195?
First, calculate the GCD of 115 and 195 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 115 ÷ 195 = 0 remainder 115 |
| 2 | 195 ÷ 115 = 1 remainder 80 |
| 3 | 115 ÷ 80 = 1 remainder 35 |
| 4 | 80 ÷ 35 = 2 remainder 10 |
| 5 | 35 ÷ 10 = 3 remainder 5 |
| 6 | 10 ÷ 5 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 150 and 70 | 1050 |
| 125 and 151 | 18875 |
| 166 and 128 | 10624 |
| 197 and 168 | 33096 |
| 32 and 36 | 288 |