Least Common Multiple (LCM) of 140 and 68
The least common multiple (LCM) of 140 and 68 is 2380.
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 140 and 68?
First, calculate the GCD of 140 and 68 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 140 ÷ 68 = 2 remainder 4 |
| 2 | 68 ÷ 4 = 17 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 112 and 43 | 4816 |
| 156 and 115 | 17940 |
| 50 and 20 | 100 |
| 64 and 115 | 7360 |
| 84 and 35 | 420 |