Least Common Multiple (LCM) of 55 and 23
The least common multiple (LCM) of 55 and 23 is 1265.
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 55 and 23?
First, calculate the GCD of 55 and 23 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 55 ÷ 23 = 2 remainder 9 |
| 2 | 23 ÷ 9 = 2 remainder 5 |
| 3 | 9 ÷ 5 = 1 remainder 4 |
| 4 | 5 ÷ 4 = 1 remainder 1 |
| 5 | 4 ÷ 1 = 4 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 110 and 192 | 10560 |
| 196 and 52 | 2548 |
| 34 and 71 | 2414 |
| 118 and 145 | 17110 |
| 188 and 36 | 1692 |