Least Common Multiple (LCM) of 38 and 69
The least common multiple (LCM) of 38 and 69 is 2622.
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 38 and 69?
First, calculate the GCD of 38 and 69 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 38 ÷ 69 = 0 remainder 38 |
| 2 | 69 ÷ 38 = 1 remainder 31 |
| 3 | 38 ÷ 31 = 1 remainder 7 |
| 4 | 31 ÷ 7 = 4 remainder 3 |
| 5 | 7 ÷ 3 = 2 remainder 1 |
| 6 | 3 ÷ 1 = 3 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 185 and 132 | 24420 |
| 147 and 162 | 7938 |
| 122 and 54 | 3294 |
| 98 and 62 | 3038 |
| 199 and 87 | 17313 |