Least Common Multiple (LCM) of 78 and 153
The least common multiple (LCM) of 78 and 153 is 3978.
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 153?
First, calculate the GCD of 78 and 153 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 78 ÷ 153 = 0 remainder 78 |
| 2 | 153 ÷ 78 = 1 remainder 75 |
| 3 | 78 ÷ 75 = 1 remainder 3 |
| 4 | 75 ÷ 3 = 25 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 30 and 122 | 1830 |
| 161 and 112 | 2576 |
| 121 and 27 | 3267 |
| 193 and 79 | 15247 |
| 127 and 26 | 3302 |