Least Common Multiple (LCM) of 168 and 90
The least common multiple (LCM) of 168 and 90 is 2520.
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 90?
First, calculate the GCD of 168 and 90 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 168 ÷ 90 = 1 remainder 78 |
| 2 | 90 ÷ 78 = 1 remainder 12 |
| 3 | 78 ÷ 12 = 6 remainder 6 |
| 4 | 12 ÷ 6 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 37 and 63 | 2331 |
| 132 and 94 | 6204 |
| 108 and 117 | 1404 |
| 169 and 171 | 28899 |
| 93 and 77 | 7161 |