Least Common Multiple (LCM) of 47 and 83
The least common multiple (LCM) of 47 and 83 is 3901.
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 83?
First, calculate the GCD of 47 and 83 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 47 ÷ 83 = 0 remainder 47 |
| 2 | 83 ÷ 47 = 1 remainder 36 |
| 3 | 47 ÷ 36 = 1 remainder 11 |
| 4 | 36 ÷ 11 = 3 remainder 3 |
| 5 | 11 ÷ 3 = 3 remainder 2 |
| 6 | 3 ÷ 2 = 1 remainder 1 |
| 7 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 196 and 82 | 8036 |
| 90 and 76 | 3420 |
| 46 and 145 | 6670 |
| 191 and 33 | 6303 |
| 133 and 15 | 1995 |