Least Common Multiple (LCM) of 139 and 15
The least common multiple (LCM) of 139 and 15 is 2085.
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 139 and 15?
First, calculate the GCD of 139 and 15 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 139 ÷ 15 = 9 remainder 4 |
| 2 | 15 ÷ 4 = 3 remainder 3 |
| 3 | 4 ÷ 3 = 1 remainder 1 |
| 4 | 3 ÷ 1 = 3 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 159 and 10 | 1590 |
| 42 and 196 | 588 |
| 137 and 103 | 14111 |
| 141 and 89 | 12549 |
| 60 and 16 | 240 |