Least Common Multiple (LCM) of 99 and 161
The least common multiple (LCM) of 99 and 161 is 15939.
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 99 and 161?
First, calculate the GCD of 99 and 161 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 99 ÷ 161 = 0 remainder 99 |
| 2 | 161 ÷ 99 = 1 remainder 62 |
| 3 | 99 ÷ 62 = 1 remainder 37 |
| 4 | 62 ÷ 37 = 1 remainder 25 |
| 5 | 37 ÷ 25 = 1 remainder 12 |
| 6 | 25 ÷ 12 = 2 remainder 1 |
| 7 | 12 ÷ 1 = 12 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 28 and 115 | 3220 |
| 196 and 188 | 9212 |
| 194 and 146 | 14162 |
| 173 and 157 | 27161 |
| 41 and 113 | 4633 |