Least Common Multiple (LCM) of 121 and 23
The least common multiple (LCM) of 121 and 23 is 2783.
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 23?
First, calculate the GCD of 121 and 23 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 121 ÷ 23 = 5 remainder 6 |
| 2 | 23 ÷ 6 = 3 remainder 5 |
| 3 | 6 ÷ 5 = 1 remainder 1 |
| 4 | 5 ÷ 1 = 5 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 138 and 104 | 7176 |
| 109 and 87 | 9483 |
| 134 and 157 | 21038 |
| 132 and 127 | 16764 |
| 33 and 98 | 3234 |