Least Common Multiple (LCM) of 47 and 122
The least common multiple (LCM) of 47 and 122 is 5734.
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 122?
First, calculate the GCD of 47 and 122 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 47 ÷ 122 = 0 remainder 47 |
| 2 | 122 ÷ 47 = 2 remainder 28 |
| 3 | 47 ÷ 28 = 1 remainder 19 |
| 4 | 28 ÷ 19 = 1 remainder 9 |
| 5 | 19 ÷ 9 = 2 remainder 1 |
| 6 | 9 ÷ 1 = 9 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 177 and 170 | 30090 |
| 102 and 32 | 1632 |
| 84 and 33 | 924 |
| 121 and 72 | 8712 |
| 171 and 179 | 30609 |