Least Common Multiple (LCM) of 31 and 165
The least common multiple (LCM) of 31 and 165 is 5115.
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 31 and 165?
First, calculate the GCD of 31 and 165 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 31 ÷ 165 = 0 remainder 31 |
| 2 | 165 ÷ 31 = 5 remainder 10 |
| 3 | 31 ÷ 10 = 3 remainder 1 |
| 4 | 10 ÷ 1 = 10 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 127 and 92 | 11684 |
| 159 and 125 | 19875 |
| 154 and 199 | 30646 |
| 200 and 139 | 27800 |
| 192 and 189 | 12096 |