Least Common Multiple (LCM) of 121 and 159
The least common multiple (LCM) of 121 and 159 is 19239.
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 121 and 159?
First, calculate the GCD of 121 and 159 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 121 ÷ 159 = 0 remainder 121 |
| 2 | 159 ÷ 121 = 1 remainder 38 |
| 3 | 121 ÷ 38 = 3 remainder 7 |
| 4 | 38 ÷ 7 = 5 remainder 3 |
| 5 | 7 ÷ 3 = 2 remainder 1 |
| 6 | 3 ÷ 1 = 3 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 61 and 159 | 9699 |
| 100 and 134 | 6700 |
| 108 and 38 | 2052 |
| 78 and 40 | 1560 |
| 158 and 57 | 9006 |