Least Common Multiple (LCM) of 15 and 132
The least common multiple (LCM) of 15 and 132 is 660.
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 132?
First, calculate the GCD of 15 and 132 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 15 ÷ 132 = 0 remainder 15 |
| 2 | 132 ÷ 15 = 8 remainder 12 |
| 3 | 15 ÷ 12 = 1 remainder 3 |
| 4 | 12 ÷ 3 = 4 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 147 and 99 | 4851 |
| 146 and 30 | 2190 |
| 138 and 21 | 966 |
| 121 and 91 | 11011 |
| 169 and 69 | 11661 |