Least Common Multiple (LCM) of 89 and 153
The least common multiple (LCM) of 89 and 153 is 13617.
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 89 and 153?
First, calculate the GCD of 89 and 153 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 89 ÷ 153 = 0 remainder 89 |
| 2 | 153 ÷ 89 = 1 remainder 64 |
| 3 | 89 ÷ 64 = 1 remainder 25 |
| 4 | 64 ÷ 25 = 2 remainder 14 |
| 5 | 25 ÷ 14 = 1 remainder 11 |
| 6 | 14 ÷ 11 = 1 remainder 3 |
| 7 | 11 ÷ 3 = 3 remainder 2 |
| 8 | 3 ÷ 2 = 1 remainder 1 |
| 9 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 156 and 194 | 15132 |
| 38 and 13 | 494 |
| 36 and 177 | 2124 |
| 15 and 74 | 1110 |
| 186 and 21 | 1302 |