Least Common Multiple (LCM) of 64 and 89
The least common multiple (LCM) of 64 and 89 is 5696.
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 64 and 89?
First, calculate the GCD of 64 and 89 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 64 ÷ 89 = 0 remainder 64 |
| 2 | 89 ÷ 64 = 1 remainder 25 |
| 3 | 64 ÷ 25 = 2 remainder 14 |
| 4 | 25 ÷ 14 = 1 remainder 11 |
| 5 | 14 ÷ 11 = 1 remainder 3 |
| 6 | 11 ÷ 3 = 3 remainder 2 |
| 7 | 3 ÷ 2 = 1 remainder 1 |
| 8 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 165 and 17 | 2805 |
| 162 and 76 | 6156 |
| 125 and 151 | 18875 |
| 47 and 70 | 3290 |
| 76 and 142 | 5396 |