Least Common Multiple (LCM) of 56 and 122
The least common multiple (LCM) of 56 and 122 is 3416.
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 56 and 122?
First, calculate the GCD of 56 and 122 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 56 ÷ 122 = 0 remainder 56 |
| 2 | 122 ÷ 56 = 2 remainder 10 |
| 3 | 56 ÷ 10 = 5 remainder 6 |
| 4 | 10 ÷ 6 = 1 remainder 4 |
| 5 | 6 ÷ 4 = 1 remainder 2 |
| 6 | 4 ÷ 2 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 141 and 55 | 7755 |
| 45 and 38 | 1710 |
| 50 and 170 | 850 |
| 143 and 10 | 1430 |
| 83 and 162 | 13446 |