Least Common Multiple (LCM) of 170 and 55
The least common multiple (LCM) of 170 and 55 is 1870.
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 55?
First, calculate the GCD of 170 and 55 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 170 ÷ 55 = 3 remainder 5 |
| 2 | 55 ÷ 5 = 11 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 15 and 168 | 840 |
| 65 and 189 | 12285 |
| 143 and 147 | 21021 |
| 94 and 88 | 4136 |
| 144 and 162 | 1296 |