Least Common Multiple (LCM) of 122 and 28
The least common multiple (LCM) of 122 and 28 is 1708.
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 122 and 28?
First, calculate the GCD of 122 and 28 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 122 ÷ 28 = 4 remainder 10 |
| 2 | 28 ÷ 10 = 2 remainder 8 |
| 3 | 10 ÷ 8 = 1 remainder 2 |
| 4 | 8 ÷ 2 = 4 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 98 and 80 | 3920 |
| 69 and 73 | 5037 |
| 138 and 86 | 5934 |
| 186 and 58 | 5394 |
| 116 and 21 | 2436 |