Least Common Multiple (LCM) of 40 and 110
The least common multiple (LCM) of 40 and 110 is 440.
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 110?
First, calculate the GCD of 40 and 110 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 40 ÷ 110 = 0 remainder 40 |
| 2 | 110 ÷ 40 = 2 remainder 30 |
| 3 | 40 ÷ 30 = 1 remainder 10 |
| 4 | 30 ÷ 10 = 3 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 14 and 108 | 756 |
| 172 and 120 | 5160 |
| 63 and 81 | 567 |
| 122 and 163 | 19886 |
| 121 and 155 | 18755 |