Least Common Multiple (LCM) of 189 and 170
The least common multiple (LCM) of 189 and 170 is 32130.
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 189 and 170?
First, calculate the GCD of 189 and 170 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 189 ÷ 170 = 1 remainder 19 |
| 2 | 170 ÷ 19 = 8 remainder 18 |
| 3 | 19 ÷ 18 = 1 remainder 1 |
| 4 | 18 ÷ 1 = 18 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 71 and 165 | 11715 |
| 76 and 151 | 11476 |
| 121 and 199 | 24079 |
| 39 and 63 | 819 |
| 89 and 107 | 9523 |