Least Common Multiple (LCM) of 63 and 45
The least common multiple (LCM) of 63 and 45 is 315.
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 63 and 45?
First, calculate the GCD of 63 and 45 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 63 ÷ 45 = 1 remainder 18 |
| 2 | 45 ÷ 18 = 2 remainder 9 |
| 3 | 18 ÷ 9 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 52 and 89 | 4628 |
| 18 and 72 | 72 |
| 30 and 44 | 660 |
| 197 and 89 | 17533 |
| 98 and 106 | 5194 |