Least Common Multiple (LCM) of 161 and 18
The least common multiple (LCM) of 161 and 18 is 2898.
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 161 and 18?
First, calculate the GCD of 161 and 18 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 161 ÷ 18 = 8 remainder 17 |
| 2 | 18 ÷ 17 = 1 remainder 1 |
| 3 | 17 ÷ 1 = 17 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 18 and 183 | 1098 |
| 145 and 156 | 22620 |
| 154 and 74 | 5698 |
| 40 and 46 | 920 |
| 63 and 100 | 6300 |