Least Common Multiple (LCM) of 39 and 147
The least common multiple (LCM) of 39 and 147 is 1911.
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 39 and 147?
First, calculate the GCD of 39 and 147 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 39 ÷ 147 = 0 remainder 39 |
| 2 | 147 ÷ 39 = 3 remainder 30 |
| 3 | 39 ÷ 30 = 1 remainder 9 |
| 4 | 30 ÷ 9 = 3 remainder 3 |
| 5 | 9 ÷ 3 = 3 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 128 and 55 | 7040 |
| 169 and 69 | 11661 |
| 178 and 191 | 33998 |
| 12 and 11 | 132 |
| 19 and 125 | 2375 |