Least Common Multiple (LCM) of 73 and 47
The least common multiple (LCM) of 73 and 47 is 3431.
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 73 and 47?
First, calculate the GCD of 73 and 47 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 73 ÷ 47 = 1 remainder 26 |
| 2 | 47 ÷ 26 = 1 remainder 21 |
| 3 | 26 ÷ 21 = 1 remainder 5 |
| 4 | 21 ÷ 5 = 4 remainder 1 |
| 5 | 5 ÷ 1 = 5 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 146 and 119 | 17374 |
| 193 and 67 | 12931 |
| 105 and 44 | 4620 |
| 85 and 81 | 6885 |
| 173 and 174 | 30102 |