Least Common Multiple (LCM) of 78 and 187
The least common multiple (LCM) of 78 and 187 is 14586.
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 78 and 187?
First, calculate the GCD of 78 and 187 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 78 ÷ 187 = 0 remainder 78 |
| 2 | 187 ÷ 78 = 2 remainder 31 |
| 3 | 78 ÷ 31 = 2 remainder 16 |
| 4 | 31 ÷ 16 = 1 remainder 15 |
| 5 | 16 ÷ 15 = 1 remainder 1 |
| 6 | 15 ÷ 1 = 15 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 138 and 139 | 19182 |
| 63 and 128 | 8064 |
| 143 and 24 | 3432 |
| 167 and 17 | 2839 |
| 142 and 33 | 4686 |