Least Common Multiple (LCM) of 169 and 47
The least common multiple (LCM) of 169 and 47 is 7943.
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 169 and 47?
First, calculate the GCD of 169 and 47 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 169 ÷ 47 = 3 remainder 28 |
| 2 | 47 ÷ 28 = 1 remainder 19 |
| 3 | 28 ÷ 19 = 1 remainder 9 |
| 4 | 19 ÷ 9 = 2 remainder 1 |
| 5 | 9 ÷ 1 = 9 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 196 and 43 | 8428 |
| 74 and 27 | 1998 |
| 163 and 96 | 15648 |
| 68 and 197 | 13396 |
| 20 and 183 | 3660 |