Least Common Multiple (LCM) of 131 and 165
The least common multiple (LCM) of 131 and 165 is 21615.
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 131 and 165?
First, calculate the GCD of 131 and 165 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 131 ÷ 165 = 0 remainder 131 |
| 2 | 165 ÷ 131 = 1 remainder 34 |
| 3 | 131 ÷ 34 = 3 remainder 29 |
| 4 | 34 ÷ 29 = 1 remainder 5 |
| 5 | 29 ÷ 5 = 5 remainder 4 |
| 6 | 5 ÷ 4 = 1 remainder 1 |
| 7 | 4 ÷ 1 = 4 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 141 and 121 | 17061 |
| 151 and 187 | 28237 |
| 64 and 52 | 832 |
| 11 and 38 | 418 |
| 117 and 200 | 23400 |