Least Common Multiple (LCM) of 51 and 117
The least common multiple (LCM) of 51 and 117 is 1989.
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 51 and 117?
First, calculate the GCD of 51 and 117 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 51 ÷ 117 = 0 remainder 51 |
| 2 | 117 ÷ 51 = 2 remainder 15 |
| 3 | 51 ÷ 15 = 3 remainder 6 |
| 4 | 15 ÷ 6 = 2 remainder 3 |
| 5 | 6 ÷ 3 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 51 and 74 | 3774 |
| 178 and 27 | 4806 |
| 159 and 108 | 5724 |
| 14 and 33 | 462 |
| 193 and 11 | 2123 |