Least Common Multiple (LCM) of 15 and 133
The least common multiple (LCM) of 15 and 133 is 1995.
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 133?
First, calculate the GCD of 15 and 133 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 15 ÷ 133 = 0 remainder 15 |
| 2 | 133 ÷ 15 = 8 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 |
|---|---|
| 154 and 172 | 13244 |
| 41 and 34 | 1394 |
| 123 and 23 | 2829 |
| 170 and 130 | 2210 |
| 118 and 20 | 1180 |