Least Common Multiple (LCM) of 155 and 91
The least common multiple (LCM) of 155 and 91 is 14105.
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 91?
First, calculate the GCD of 155 and 91 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 155 ÷ 91 = 1 remainder 64 |
| 2 | 91 ÷ 64 = 1 remainder 27 |
| 3 | 64 ÷ 27 = 2 remainder 10 |
| 4 | 27 ÷ 10 = 2 remainder 7 |
| 5 | 10 ÷ 7 = 1 remainder 3 |
| 6 | 7 ÷ 3 = 2 remainder 1 |
| 7 | 3 ÷ 1 = 3 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 39 and 113 | 4407 |
| 181 and 104 | 18824 |
| 190 and 124 | 11780 |
| 137 and 17 | 2329 |
| 147 and 196 | 588 |