Least Common Multiple (LCM) of 155 and 187
The least common multiple (LCM) of 155 and 187 is 28985.
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 155 and 187?
First, calculate the GCD of 155 and 187 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 155 ÷ 187 = 0 remainder 155 |
| 2 | 187 ÷ 155 = 1 remainder 32 |
| 3 | 155 ÷ 32 = 4 remainder 27 |
| 4 | 32 ÷ 27 = 1 remainder 5 |
| 5 | 27 ÷ 5 = 5 remainder 2 |
| 6 | 5 ÷ 2 = 2 remainder 1 |
| 7 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 28 and 187 | 5236 |
| 117 and 111 | 4329 |
| 131 and 87 | 11397 |
| 146 and 141 | 20586 |
| 49 and 47 | 2303 |