Least Common Multiple (LCM) of 38 and 170
The least common multiple (LCM) of 38 and 170 is 3230.
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 170?
First, calculate the GCD of 38 and 170 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 38 ÷ 170 = 0 remainder 38 |
| 2 | 170 ÷ 38 = 4 remainder 18 |
| 3 | 38 ÷ 18 = 2 remainder 2 |
| 4 | 18 ÷ 2 = 9 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 196 and 80 | 3920 |
| 194 and 54 | 5238 |
| 198 and 155 | 30690 |
| 28 and 184 | 1288 |
| 132 and 115 | 15180 |