Least Common Multiple (LCM) of 67 and 123
The least common multiple (LCM) of 67 and 123 is 8241.
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 67 and 123?
First, calculate the GCD of 67 and 123 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 67 ÷ 123 = 0 remainder 67 |
| 2 | 123 ÷ 67 = 1 remainder 56 |
| 3 | 67 ÷ 56 = 1 remainder 11 |
| 4 | 56 ÷ 11 = 5 remainder 1 |
| 5 | 11 ÷ 1 = 11 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 72 and 157 | 11304 |
| 51 and 45 | 765 |
| 40 and 120 | 120 |
| 184 and 86 | 7912 |
| 21 and 174 | 1218 |