Least Common Multiple (LCM) of 47 and 156
The least common multiple (LCM) of 47 and 156 is 7332.
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 47 and 156?
First, calculate the GCD of 47 and 156 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 47 ÷ 156 = 0 remainder 47 |
| 2 | 156 ÷ 47 = 3 remainder 15 |
| 3 | 47 ÷ 15 = 3 remainder 2 |
| 4 | 15 ÷ 2 = 7 remainder 1 |
| 5 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 158 and 20 | 1580 |
| 200 and 15 | 600 |
| 154 and 153 | 23562 |
| 10 and 122 | 610 |
| 12 and 153 | 612 |