Least Common Multiple (LCM) of 180 and 115
The least common multiple (LCM) of 180 and 115 is 4140.
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 180 and 115?
First, calculate the GCD of 180 and 115 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 180 ÷ 115 = 1 remainder 65 |
| 2 | 115 ÷ 65 = 1 remainder 50 |
| 3 | 65 ÷ 50 = 1 remainder 15 |
| 4 | 50 ÷ 15 = 3 remainder 5 |
| 5 | 15 ÷ 5 = 3 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 130 and 43 | 5590 |
| 100 and 171 | 17100 |
| 178 and 103 | 18334 |
| 168 and 114 | 3192 |
| 102 and 162 | 2754 |