Least Common Multiple (LCM) of 140 and 189
The least common multiple (LCM) of 140 and 189 is 3780.
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 140 and 189?
First, calculate the GCD of 140 and 189 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 140 ÷ 189 = 0 remainder 140 |
| 2 | 189 ÷ 140 = 1 remainder 49 |
| 3 | 140 ÷ 49 = 2 remainder 42 |
| 4 | 49 ÷ 42 = 1 remainder 7 |
| 5 | 42 ÷ 7 = 6 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 141 and 189 | 8883 |
| 72 and 62 | 2232 |
| 42 and 198 | 1386 |
| 85 and 171 | 14535 |
| 187 and 89 | 16643 |