Least Common Multiple (LCM) of 170 and 38
The least common multiple (LCM) of 170 and 38 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 170 and 38?
First, calculate the GCD of 170 and 38 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 170 ÷ 38 = 4 remainder 18 |
| 2 | 38 ÷ 18 = 2 remainder 2 |
| 3 | 18 ÷ 2 = 9 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 55 and 70 | 770 |
| 77 and 121 | 847 |
| 168 and 160 | 3360 |
| 197 and 182 | 35854 |
| 123 and 145 | 17835 |