Least Common Multiple (LCM) of 49 and 139
The least common multiple (LCM) of 49 and 139 is 6811.
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 49 and 139?
First, calculate the GCD of 49 and 139 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 49 ÷ 139 = 0 remainder 49 |
| 2 | 139 ÷ 49 = 2 remainder 41 |
| 3 | 49 ÷ 41 = 1 remainder 8 |
| 4 | 41 ÷ 8 = 5 remainder 1 |
| 5 | 8 ÷ 1 = 8 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 135 and 156 | 7020 |
| 82 and 82 | 82 |
| 57 and 90 | 1710 |
| 15 and 199 | 2985 |
| 173 and 157 | 27161 |