Least Common Multiple (LCM) of 90 and 162
The least common multiple (LCM) of 90 and 162 is 810.
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 90 and 162?
First, calculate the GCD of 90 and 162 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 90 ÷ 162 = 0 remainder 90 |
| 2 | 162 ÷ 90 = 1 remainder 72 |
| 3 | 90 ÷ 72 = 1 remainder 18 |
| 4 | 72 ÷ 18 = 4 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 157 and 138 | 21666 |
| 186 and 134 | 12462 |
| 65 and 29 | 1885 |
| 157 and 12 | 1884 |
| 30 and 13 | 390 |