Least Common Multiple (LCM) of 168 and 55
The least common multiple (LCM) of 168 and 55 is 9240.
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 168 and 55?
First, calculate the GCD of 168 and 55 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 168 ÷ 55 = 3 remainder 3 |
| 2 | 55 ÷ 3 = 18 remainder 1 |
| 3 | 3 ÷ 1 = 3 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 154 and 56 | 616 |
| 129 and 172 | 516 |
| 126 and 97 | 12222 |
| 99 and 63 | 693 |
| 28 and 86 | 1204 |