Least Common Multiple (LCM) of 99 and 87
The least common multiple (LCM) of 99 and 87 is 2871.
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 87?
First, calculate the GCD of 99 and 87 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 99 ÷ 87 = 1 remainder 12 |
| 2 | 87 ÷ 12 = 7 remainder 3 |
| 3 | 12 ÷ 3 = 4 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 77 and 155 | 11935 |
| 142 and 149 | 21158 |
| 152 and 138 | 10488 |
| 31 and 31 | 31 |
| 14 and 69 | 966 |