Least Common Multiple (LCM) of 143 and 72
The least common multiple (LCM) of 143 and 72 is 10296.
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 143 and 72?
First, calculate the GCD of 143 and 72 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 143 ÷ 72 = 1 remainder 71 |
| 2 | 72 ÷ 71 = 1 remainder 1 |
| 3 | 71 ÷ 1 = 71 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 186 and 123 | 7626 |
| 77 and 136 | 10472 |
| 18 and 54 | 54 |
| 124 and 21 | 2604 |
| 42 and 30 | 210 |