Least Common Multiple (LCM) of 56 and 74
The least common multiple (LCM) of 56 and 74 is 2072.
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 74?
First, calculate the GCD of 56 and 74 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 56 ÷ 74 = 0 remainder 56 |
| 2 | 74 ÷ 56 = 1 remainder 18 |
| 3 | 56 ÷ 18 = 3 remainder 2 |
| 4 | 18 ÷ 2 = 9 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 80 and 39 | 3120 |
| 30 and 42 | 210 |
| 149 and 100 | 14900 |
| 179 and 169 | 30251 |
| 163 and 126 | 20538 |