Least Common Multiple (LCM) of 91 and 145
The least common multiple (LCM) of 91 and 145 is 13195.
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 91 and 145?
First, calculate the GCD of 91 and 145 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 91 ÷ 145 = 0 remainder 91 |
| 2 | 145 ÷ 91 = 1 remainder 54 |
| 3 | 91 ÷ 54 = 1 remainder 37 |
| 4 | 54 ÷ 37 = 1 remainder 17 |
| 5 | 37 ÷ 17 = 2 remainder 3 |
| 6 | 17 ÷ 3 = 5 remainder 2 |
| 7 | 3 ÷ 2 = 1 remainder 1 |
| 8 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 197 and 37 | 7289 |
| 45 and 175 | 1575 |
| 46 and 26 | 598 |
| 69 and 175 | 12075 |
| 153 and 20 | 3060 |