Least Common Multiple (LCM) of 158 and 99
The least common multiple (LCM) of 158 and 99 is 15642.
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 158 and 99?
First, calculate the GCD of 158 and 99 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 158 ÷ 99 = 1 remainder 59 |
| 2 | 99 ÷ 59 = 1 remainder 40 |
| 3 | 59 ÷ 40 = 1 remainder 19 |
| 4 | 40 ÷ 19 = 2 remainder 2 |
| 5 | 19 ÷ 2 = 9 remainder 1 |
| 6 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 13 and 91 | 91 |
| 142 and 120 | 8520 |
| 40 and 140 | 280 |
| 16 and 128 | 128 |
| 139 and 120 | 16680 |