Least Common Multiple (LCM) of 18 and 124
The least common multiple (LCM) of 18 and 124 is 1116.
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 18 and 124?
First, calculate the GCD of 18 and 124 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 18 ÷ 124 = 0 remainder 18 |
| 2 | 124 ÷ 18 = 6 remainder 16 |
| 3 | 18 ÷ 16 = 1 remainder 2 |
| 4 | 16 ÷ 2 = 8 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 185 and 148 | 740 |
| 98 and 95 | 9310 |
| 161 and 21 | 483 |
| 123 and 198 | 8118 |
| 156 and 129 | 6708 |