Least Common Multiple (LCM) of 195 and 18
The least common multiple (LCM) of 195 and 18 is 1170.
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 195 and 18?
First, calculate the GCD of 195 and 18 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 195 ÷ 18 = 10 remainder 15 |
| 2 | 18 ÷ 15 = 1 remainder 3 |
| 3 | 15 ÷ 3 = 5 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 166 and 72 | 5976 |
| 187 and 18 | 3366 |
| 151 and 151 | 151 |
| 49 and 172 | 8428 |
| 187 and 139 | 25993 |