Least Common Multiple (LCM) of 154 and 81
The least common multiple (LCM) of 154 and 81 is 12474.
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 154 and 81?
First, calculate the GCD of 154 and 81 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 154 ÷ 81 = 1 remainder 73 |
| 2 | 81 ÷ 73 = 1 remainder 8 |
| 3 | 73 ÷ 8 = 9 remainder 1 |
| 4 | 8 ÷ 1 = 8 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 99 and 119 | 11781 |
| 69 and 99 | 2277 |
| 15 and 114 | 570 |
| 134 and 66 | 4422 |
| 16 and 20 | 80 |