Least Common Multiple (LCM) of 161 and 157
The least common multiple (LCM) of 161 and 157 is 25277.
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 161 and 157?
First, calculate the GCD of 161 and 157 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 161 ÷ 157 = 1 remainder 4 |
| 2 | 157 ÷ 4 = 39 remainder 1 |
| 3 | 4 ÷ 1 = 4 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 140 and 122 | 8540 |
| 29 and 37 | 1073 |
| 73 and 99 | 7227 |
| 110 and 160 | 1760 |
| 81 and 15 | 405 |