Least Common Multiple (LCM) of 38 and 84
The least common multiple (LCM) of 38 and 84 is 1596.
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 38 and 84?
First, calculate the GCD of 38 and 84 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 38 ÷ 84 = 0 remainder 38 |
| 2 | 84 ÷ 38 = 2 remainder 8 |
| 3 | 38 ÷ 8 = 4 remainder 6 |
| 4 | 8 ÷ 6 = 1 remainder 2 |
| 5 | 6 ÷ 2 = 3 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 152 and 134 | 10184 |
| 197 and 31 | 6107 |
| 122 and 117 | 14274 |
| 149 and 173 | 25777 |
| 45 and 20 | 180 |