Least Common Multiple (LCM) of 169 and 31
The least common multiple (LCM) of 169 and 31 is 5239.
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 31?
First, calculate the GCD of 169 and 31 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 169 ÷ 31 = 5 remainder 14 |
| 2 | 31 ÷ 14 = 2 remainder 3 |
| 3 | 14 ÷ 3 = 4 remainder 2 |
| 4 | 3 ÷ 2 = 1 remainder 1 |
| 5 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 91 and 146 | 13286 |
| 148 and 40 | 1480 |
| 158 and 179 | 28282 |
| 55 and 102 | 5610 |
| 134 and 145 | 19430 |