Least Common Multiple (LCM) of 78 and 141
The least common multiple (LCM) of 78 and 141 is 3666.
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 141?
First, calculate the GCD of 78 and 141 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 78 ÷ 141 = 0 remainder 78 |
| 2 | 141 ÷ 78 = 1 remainder 63 |
| 3 | 78 ÷ 63 = 1 remainder 15 |
| 4 | 63 ÷ 15 = 4 remainder 3 |
| 5 | 15 ÷ 3 = 5 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 167 and 120 | 20040 |
| 16 and 76 | 304 |
| 189 and 71 | 13419 |
| 131 and 90 | 11790 |
| 118 and 166 | 9794 |