Least Common Multiple (LCM) of 89 and 155
The least common multiple (LCM) of 89 and 155 is 13795.
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 89 and 155?
First, calculate the GCD of 89 and 155 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 89 ÷ 155 = 0 remainder 89 |
| 2 | 155 ÷ 89 = 1 remainder 66 |
| 3 | 89 ÷ 66 = 1 remainder 23 |
| 4 | 66 ÷ 23 = 2 remainder 20 |
| 5 | 23 ÷ 20 = 1 remainder 3 |
| 6 | 20 ÷ 3 = 6 remainder 2 |
| 7 | 3 ÷ 2 = 1 remainder 1 |
| 8 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 95 and 137 | 13015 |
| 121 and 98 | 11858 |
| 143 and 128 | 18304 |
| 59 and 123 | 7257 |
| 184 and 109 | 20056 |