Least Common Multiple (LCM) of 161 and 118
The least common multiple (LCM) of 161 and 118 is 18998.
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 118?
First, calculate the GCD of 161 and 118 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 161 ÷ 118 = 1 remainder 43 |
| 2 | 118 ÷ 43 = 2 remainder 32 |
| 3 | 43 ÷ 32 = 1 remainder 11 |
| 4 | 32 ÷ 11 = 2 remainder 10 |
| 5 | 11 ÷ 10 = 1 remainder 1 |
| 6 | 10 ÷ 1 = 10 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 57 and 137 | 7809 |
| 139 and 11 | 1529 |
| 159 and 102 | 5406 |
| 86 and 59 | 5074 |
| 196 and 39 | 7644 |