Least Common Multiple (LCM) of 140 and 172
The least common multiple (LCM) of 140 and 172 is 6020.
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 172?
First, calculate the GCD of 140 and 172 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 140 ÷ 172 = 0 remainder 140 |
| 2 | 172 ÷ 140 = 1 remainder 32 |
| 3 | 140 ÷ 32 = 4 remainder 12 |
| 4 | 32 ÷ 12 = 2 remainder 8 |
| 5 | 12 ÷ 8 = 1 remainder 4 |
| 6 | 8 ÷ 4 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 32 and 140 | 1120 |
| 188 and 163 | 30644 |
| 180 and 180 | 180 |
| 37 and 132 | 4884 |
| 88 and 77 | 616 |