Least Common Multiple (LCM) of 12 and 123
The least common multiple (LCM) of 12 and 123 is 492.
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 12 and 123?
First, calculate the GCD of 12 and 123 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 12 ÷ 123 = 0 remainder 12 |
| 2 | 123 ÷ 12 = 10 remainder 3 |
| 3 | 12 ÷ 3 = 4 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 178 and 89 | 178 |
| 86 and 54 | 2322 |
| 14 and 192 | 1344 |
| 120 and 112 | 1680 |
| 51 and 34 | 102 |