Least Common Multiple (LCM) of 74 and 140
The least common multiple (LCM) of 74 and 140 is 5180.
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 74 and 140?
First, calculate the GCD of 74 and 140 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 74 ÷ 140 = 0 remainder 74 |
| 2 | 140 ÷ 74 = 1 remainder 66 |
| 3 | 74 ÷ 66 = 1 remainder 8 |
| 4 | 66 ÷ 8 = 8 remainder 2 |
| 5 | 8 ÷ 2 = 4 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 27 and 140 | 3780 |
| 40 and 65 | 520 |
| 126 and 35 | 630 |
| 85 and 24 | 2040 |
| 148 and 29 | 4292 |