Least Common Multiple (LCM) of 145 and 120
The least common multiple (LCM) of 145 and 120 is 3480.
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 145 and 120?
First, calculate the GCD of 145 and 120 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 145 ÷ 120 = 1 remainder 25 |
| 2 | 120 ÷ 25 = 4 remainder 20 |
| 3 | 25 ÷ 20 = 1 remainder 5 |
| 4 | 20 ÷ 5 = 4 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 53 and 52 | 2756 |
| 74 and 186 | 6882 |
| 68 and 100 | 1700 |
| 109 and 103 | 11227 |
| 198 and 180 | 1980 |