Least Common Multiple (LCM) of 169 and 109
The least common multiple (LCM) of 169 and 109 is 18421.
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 109?
First, calculate the GCD of 169 and 109 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 169 ÷ 109 = 1 remainder 60 |
| 2 | 109 ÷ 60 = 1 remainder 49 |
| 3 | 60 ÷ 49 = 1 remainder 11 |
| 4 | 49 ÷ 11 = 4 remainder 5 |
| 5 | 11 ÷ 5 = 2 remainder 1 |
| 6 | 5 ÷ 1 = 5 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 12 and 21 | 84 |
| 113 and 101 | 11413 |
| 165 and 155 | 5115 |
| 96 and 12 | 96 |
| 139 and 168 | 23352 |