Least Common Multiple (LCM) of 63 and 138
The least common multiple (LCM) of 63 and 138 is 2898.
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 138?
First, calculate the GCD of 63 and 138 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 63 ÷ 138 = 0 remainder 63 |
| 2 | 138 ÷ 63 = 2 remainder 12 |
| 3 | 63 ÷ 12 = 5 remainder 3 |
| 4 | 12 ÷ 3 = 4 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 154 and 86 | 6622 |
| 195 and 34 | 6630 |
| 49 and 187 | 9163 |
| 130 and 63 | 8190 |
| 17 and 23 | 391 |