Least Common Multiple (LCM) of 99 and 120
The least common multiple (LCM) of 99 and 120 is 3960.
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 99 and 120?
First, calculate the GCD of 99 and 120 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 99 ÷ 120 = 0 remainder 99 |
| 2 | 120 ÷ 99 = 1 remainder 21 |
| 3 | 99 ÷ 21 = 4 remainder 15 |
| 4 | 21 ÷ 15 = 1 remainder 6 |
| 5 | 15 ÷ 6 = 2 remainder 3 |
| 6 | 6 ÷ 3 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 157 and 28 | 4396 |
| 49 and 18 | 882 |
| 143 and 17 | 2431 |
| 19 and 48 | 912 |
| 113 and 152 | 17176 |