Least Common Multiple (LCM) of 55 and 139
The least common multiple (LCM) of 55 and 139 is 7645.
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 55 and 139?
First, calculate the GCD of 55 and 139 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 55 ÷ 139 = 0 remainder 55 |
| 2 | 139 ÷ 55 = 2 remainder 29 |
| 3 | 55 ÷ 29 = 1 remainder 26 |
| 4 | 29 ÷ 26 = 1 remainder 3 |
| 5 | 26 ÷ 3 = 8 remainder 2 |
| 6 | 3 ÷ 2 = 1 remainder 1 |
| 7 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 122 and 56 | 3416 |
| 181 and 106 | 19186 |
| 100 and 140 | 700 |
| 127 and 42 | 5334 |
| 52 and 96 | 1248 |