Least Common Multiple (LCM) of 51 and 126
The least common multiple (LCM) of 51 and 126 is 2142.
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 126?
First, calculate the GCD of 51 and 126 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 51 ÷ 126 = 0 remainder 51 |
| 2 | 126 ÷ 51 = 2 remainder 24 |
| 3 | 51 ÷ 24 = 2 remainder 3 |
| 4 | 24 ÷ 3 = 8 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 197 and 131 | 25807 |
| 81 and 38 | 3078 |
| 32 and 54 | 864 |
| 45 and 182 | 8190 |
| 159 and 199 | 31641 |