Least Common Multiple (LCM) of 161 and 74
The least common multiple (LCM) of 161 and 74 is 11914.
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 74?
First, calculate the GCD of 161 and 74 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 161 ÷ 74 = 2 remainder 13 |
| 2 | 74 ÷ 13 = 5 remainder 9 |
| 3 | 13 ÷ 9 = 1 remainder 4 |
| 4 | 9 ÷ 4 = 2 remainder 1 |
| 5 | 4 ÷ 1 = 4 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 182 and 61 | 11102 |
| 82 and 24 | 984 |
| 189 and 89 | 16821 |
| 159 and 159 | 159 |
| 30 and 38 | 570 |