Least Common Multiple (LCM) of 68 and 109
The least common multiple (LCM) of 68 and 109 is 7412.
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 68 and 109?
First, calculate the GCD of 68 and 109 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 68 ÷ 109 = 0 remainder 68 |
| 2 | 109 ÷ 68 = 1 remainder 41 |
| 3 | 68 ÷ 41 = 1 remainder 27 |
| 4 | 41 ÷ 27 = 1 remainder 14 |
| 5 | 27 ÷ 14 = 1 remainder 13 |
| 6 | 14 ÷ 13 = 1 remainder 1 |
| 7 | 13 ÷ 1 = 13 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 79 and 145 | 11455 |
| 144 and 181 | 26064 |
| 50 and 18 | 450 |
| 173 and 59 | 10207 |
| 182 and 158 | 14378 |