Least Common Multiple (LCM) of 158 and 138
The least common multiple (LCM) of 158 and 138 is 10902.
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 138?
First, calculate the GCD of 158 and 138 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 158 ÷ 138 = 1 remainder 20 |
| 2 | 138 ÷ 20 = 6 remainder 18 |
| 3 | 20 ÷ 18 = 1 remainder 2 |
| 4 | 18 ÷ 2 = 9 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 16 and 123 | 1968 |
| 100 and 48 | 1200 |
| 155 and 28 | 4340 |
| 49 and 87 | 4263 |
| 81 and 44 | 3564 |