Least Common Multiple (LCM) of 139 and 157
The least common multiple (LCM) of 139 and 157 is 21823.
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 157?
First, calculate the GCD of 139 and 157 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 139 ÷ 157 = 0 remainder 139 |
| 2 | 157 ÷ 139 = 1 remainder 18 |
| 3 | 139 ÷ 18 = 7 remainder 13 |
| 4 | 18 ÷ 13 = 1 remainder 5 |
| 5 | 13 ÷ 5 = 2 remainder 3 |
| 6 | 5 ÷ 3 = 1 remainder 2 |
| 7 | 3 ÷ 2 = 1 remainder 1 |
| 8 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 96 and 124 | 2976 |
| 71 and 33 | 2343 |
| 81 and 69 | 1863 |
| 37 and 189 | 6993 |
| 31 and 117 | 3627 |