Least Common Multiple (LCM) of 89 and 105
The least common multiple (LCM) of 89 and 105 is 9345.
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 105?
First, calculate the GCD of 89 and 105 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 89 ÷ 105 = 0 remainder 89 |
| 2 | 105 ÷ 89 = 1 remainder 16 |
| 3 | 89 ÷ 16 = 5 remainder 9 |
| 4 | 16 ÷ 9 = 1 remainder 7 |
| 5 | 9 ÷ 7 = 1 remainder 2 |
| 6 | 7 ÷ 2 = 3 remainder 1 |
| 7 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 143 and 13 | 143 |
| 111 and 102 | 3774 |
| 136 and 172 | 5848 |
| 27 and 17 | 459 |
| 85 and 186 | 15810 |