Least Common Multiple (LCM) of 40 and 135
The least common multiple (LCM) of 40 and 135 is 1080.
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 40 and 135?
First, calculate the GCD of 40 and 135 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 40 ÷ 135 = 0 remainder 40 |
| 2 | 135 ÷ 40 = 3 remainder 15 |
| 3 | 40 ÷ 15 = 2 remainder 10 |
| 4 | 15 ÷ 10 = 1 remainder 5 |
| 5 | 10 ÷ 5 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 157 and 106 | 16642 |
| 169 and 47 | 7943 |
| 139 and 30 | 4170 |
| 125 and 26 | 3250 |
| 153 and 75 | 3825 |