Least Common Multiple (LCM) of 105 and 23
The least common multiple (LCM) of 105 and 23 is 2415.
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 105 and 23?
First, calculate the GCD of 105 and 23 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 105 ÷ 23 = 4 remainder 13 |
| 2 | 23 ÷ 13 = 1 remainder 10 |
| 3 | 13 ÷ 10 = 1 remainder 3 |
| 4 | 10 ÷ 3 = 3 remainder 1 |
| 5 | 3 ÷ 1 = 3 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 24 and 177 | 1416 |
| 74 and 24 | 888 |
| 175 and 97 | 16975 |
| 193 and 124 | 23932 |
| 110 and 101 | 11110 |