Least Common Multiple (LCM) of 43 and 149
The least common multiple (LCM) of 43 and 149 is 6407.
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 43 and 149?
First, calculate the GCD of 43 and 149 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 43 ÷ 149 = 0 remainder 43 |
| 2 | 149 ÷ 43 = 3 remainder 20 |
| 3 | 43 ÷ 20 = 2 remainder 3 |
| 4 | 20 ÷ 3 = 6 remainder 2 |
| 5 | 3 ÷ 2 = 1 remainder 1 |
| 6 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 106 and 45 | 4770 |
| 156 and 27 | 1404 |
| 146 and 178 | 12994 |
| 195 and 190 | 7410 |
| 25 and 79 | 1975 |