Least Common Multiple (LCM) of 47 and 153
The least common multiple (LCM) of 47 and 153 is 7191.
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 153?
First, calculate the GCD of 47 and 153 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 47 ÷ 153 = 0 remainder 47 |
| 2 | 153 ÷ 47 = 3 remainder 12 |
| 3 | 47 ÷ 12 = 3 remainder 11 |
| 4 | 12 ÷ 11 = 1 remainder 1 |
| 5 | 11 ÷ 1 = 11 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 117 and 41 | 4797 |
| 135 and 147 | 6615 |
| 105 and 29 | 3045 |
| 187 and 125 | 23375 |
| 147 and 147 | 147 |