Least Common Multiple (LCM) of 47 and 169
The least common multiple (LCM) of 47 and 169 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 47 and 169?
First, calculate the GCD of 47 and 169 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 47 ÷ 169 = 0 remainder 47 |
| 2 | 169 ÷ 47 = 3 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 |
|---|---|
| 131 and 77 | 10087 |
| 117 and 194 | 22698 |
| 75 and 98 | 7350 |
| 150 and 143 | 21450 |
| 68 and 132 | 2244 |