Least Common Multiple (LCM) of 15 and 102
The least common multiple (LCM) of 15 and 102 is 510.
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 15 and 102?
First, calculate the GCD of 15 and 102 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 15 ÷ 102 = 0 remainder 15 |
| 2 | 102 ÷ 15 = 6 remainder 12 |
| 3 | 15 ÷ 12 = 1 remainder 3 |
| 4 | 12 ÷ 3 = 4 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 129 and 49 | 6321 |
| 25 and 119 | 2975 |
| 157 and 45 | 7065 |
| 173 and 11 | 1903 |
| 117 and 90 | 1170 |