Least Common Multiple (LCM) of 18 and 178
The least common multiple (LCM) of 18 and 178 is 1602.
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 178?
First, calculate the GCD of 18 and 178 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 18 ÷ 178 = 0 remainder 18 |
| 2 | 178 ÷ 18 = 9 remainder 16 |
| 3 | 18 ÷ 16 = 1 remainder 2 |
| 4 | 16 ÷ 2 = 8 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 121 and 124 | 15004 |
| 80 and 14 | 560 |
| 61 and 123 | 7503 |
| 138 and 148 | 10212 |
| 147 and 144 | 7056 |