Least Common Multiple (LCM) of 100 and 161
The least common multiple (LCM) of 100 and 161 is 16100.
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 100 and 161?
First, calculate the GCD of 100 and 161 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 100 ÷ 161 = 0 remainder 100 |
| 2 | 161 ÷ 100 = 1 remainder 61 |
| 3 | 100 ÷ 61 = 1 remainder 39 |
| 4 | 61 ÷ 39 = 1 remainder 22 |
| 5 | 39 ÷ 22 = 1 remainder 17 |
| 6 | 22 ÷ 17 = 1 remainder 5 |
| 7 | 17 ÷ 5 = 3 remainder 2 |
| 8 | 5 ÷ 2 = 2 remainder 1 |
| 9 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 71 and 193 | 13703 |
| 129 and 22 | 2838 |
| 195 and 116 | 22620 |
| 49 and 196 | 196 |
| 158 and 189 | 29862 |