Least Common Multiple (LCM) of 165 and 90
The least common multiple (LCM) of 165 and 90 is 990.
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 165 and 90?
First, calculate the GCD of 165 and 90 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 165 ÷ 90 = 1 remainder 75 |
| 2 | 90 ÷ 75 = 1 remainder 15 |
| 3 | 75 ÷ 15 = 5 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 33 and 128 | 4224 |
| 150 and 146 | 10950 |
| 71 and 64 | 4544 |
| 148 and 20 | 740 |
| 161 and 198 | 31878 |