Least Common Multiple (LCM) of 72 and 102
The least common multiple (LCM) of 72 and 102 is 1224.
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 72 and 102?
First, calculate the GCD of 72 and 102 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 72 ÷ 102 = 0 remainder 72 |
| 2 | 102 ÷ 72 = 1 remainder 30 |
| 3 | 72 ÷ 30 = 2 remainder 12 |
| 4 | 30 ÷ 12 = 2 remainder 6 |
| 5 | 12 ÷ 6 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 186 and 42 | 1302 |
| 83 and 138 | 11454 |
| 93 and 188 | 17484 |
| 61 and 74 | 4514 |
| 77 and 111 | 8547 |