Least Common Multiple (LCM) of 74 and 168
The least common multiple (LCM) of 74 and 168 is 6216.
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 74 and 168?
First, calculate the GCD of 74 and 168 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 74 ÷ 168 = 0 remainder 74 |
| 2 | 168 ÷ 74 = 2 remainder 20 |
| 3 | 74 ÷ 20 = 3 remainder 14 |
| 4 | 20 ÷ 14 = 1 remainder 6 |
| 5 | 14 ÷ 6 = 2 remainder 2 |
| 6 | 6 ÷ 2 = 3 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 184 and 194 | 17848 |
| 78 and 161 | 12558 |
| 123 and 78 | 3198 |
| 12 and 70 | 420 |
| 171 and 55 | 9405 |