Least Common Multiple (LCM) of 170 and 84
The least common multiple (LCM) of 170 and 84 is 7140.
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 84?
First, calculate the GCD of 170 and 84 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 170 ÷ 84 = 2 remainder 2 |
| 2 | 84 ÷ 2 = 42 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 45 and 41 | 1845 |
| 163 and 186 | 30318 |
| 180 and 180 | 180 |
| 36 and 89 | 3204 |
| 40 and 151 | 6040 |