Least Common Multiple (LCM) of 47 and 39
The least common multiple (LCM) of 47 and 39 is 1833.
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 47 and 39?
First, calculate the GCD of 47 and 39 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 47 ÷ 39 = 1 remainder 8 |
| 2 | 39 ÷ 8 = 4 remainder 7 |
| 3 | 8 ÷ 7 = 1 remainder 1 |
| 4 | 7 ÷ 1 = 7 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 166 and 18 | 1494 |
| 189 and 103 | 19467 |
| 107 and 158 | 16906 |
| 63 and 97 | 6111 |
| 148 and 145 | 21460 |