Least Common Multiple (LCM) of 145 and 170
The least common multiple (LCM) of 145 and 170 is 4930.
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 145 and 170?
First, calculate the GCD of 145 and 170 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 145 ÷ 170 = 0 remainder 145 |
| 2 | 170 ÷ 145 = 1 remainder 25 |
| 3 | 145 ÷ 25 = 5 remainder 20 |
| 4 | 25 ÷ 20 = 1 remainder 5 |
| 5 | 20 ÷ 5 = 4 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 61 and 30 | 1830 |
| 93 and 12 | 372 |
| 30 and 103 | 3090 |
| 35 and 144 | 5040 |
| 173 and 123 | 21279 |