Least Common Multiple (LCM) of 117 and 45
The least common multiple (LCM) of 117 and 45 is 585.
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 117 and 45?
First, calculate the GCD of 117 and 45 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 117 ÷ 45 = 2 remainder 27 |
| 2 | 45 ÷ 27 = 1 remainder 18 |
| 3 | 27 ÷ 18 = 1 remainder 9 |
| 4 | 18 ÷ 9 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 67 and 111 | 7437 |
| 40 and 185 | 1480 |
| 168 and 34 | 2856 |
| 161 and 44 | 7084 |
| 175 and 172 | 30100 |