Least Common Multiple (LCM) of 40 and 178
The least common multiple (LCM) of 40 and 178 is 3560.
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 40 and 178?
First, calculate the GCD of 40 and 178 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 40 ÷ 178 = 0 remainder 40 |
| 2 | 178 ÷ 40 = 4 remainder 18 |
| 3 | 40 ÷ 18 = 2 remainder 4 |
| 4 | 18 ÷ 4 = 4 remainder 2 |
| 5 | 4 ÷ 2 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 96 and 185 | 17760 |
| 178 and 199 | 35422 |
| 151 and 79 | 11929 |
| 127 and 15 | 1905 |
| 12 and 141 | 564 |