Least Common Multiple (LCM) of 87 and 153
The least common multiple (LCM) of 87 and 153 is 4437.
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 87 and 153?
First, calculate the GCD of 87 and 153 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 87 ÷ 153 = 0 remainder 87 |
| 2 | 153 ÷ 87 = 1 remainder 66 |
| 3 | 87 ÷ 66 = 1 remainder 21 |
| 4 | 66 ÷ 21 = 3 remainder 3 |
| 5 | 21 ÷ 3 = 7 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 135 and 138 | 6210 |
| 144 and 104 | 1872 |
| 116 and 172 | 4988 |
| 173 and 37 | 6401 |
| 73 and 175 | 12775 |