Least Common Multiple (LCM) of 15 and 148
The least common multiple (LCM) of 15 and 148 is 2220.
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 15 and 148?
First, calculate the GCD of 15 and 148 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 15 ÷ 148 = 0 remainder 15 |
| 2 | 148 ÷ 15 = 9 remainder 13 |
| 3 | 15 ÷ 13 = 1 remainder 2 |
| 4 | 13 ÷ 2 = 6 remainder 1 |
| 5 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 171 and 39 | 2223 |
| 38 and 125 | 4750 |
| 170 and 187 | 1870 |
| 152 and 35 | 5320 |
| 43 and 80 | 3440 |