Least Common Multiple (LCM) of 91 and 111
The least common multiple (LCM) of 91 and 111 is 10101.
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 111?
First, calculate the GCD of 91 and 111 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 91 ÷ 111 = 0 remainder 91 |
| 2 | 111 ÷ 91 = 1 remainder 20 |
| 3 | 91 ÷ 20 = 4 remainder 11 |
| 4 | 20 ÷ 11 = 1 remainder 9 |
| 5 | 11 ÷ 9 = 1 remainder 2 |
| 6 | 9 ÷ 2 = 4 remainder 1 |
| 7 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 72 and 123 | 2952 |
| 99 and 122 | 12078 |
| 85 and 70 | 1190 |
| 111 and 197 | 21867 |
| 64 and 145 | 9280 |