Least Common Multiple (LCM) of 23 and 67
The least common multiple (LCM) of 23 and 67 is 1541.
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 23 and 67?
First, calculate the GCD of 23 and 67 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 23 ÷ 67 = 0 remainder 23 |
| 2 | 67 ÷ 23 = 2 remainder 21 |
| 3 | 23 ÷ 21 = 1 remainder 2 |
| 4 | 21 ÷ 2 = 10 remainder 1 |
| 5 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 40 and 168 | 840 |
| 106 and 89 | 9434 |
| 145 and 90 | 2610 |
| 81 and 169 | 13689 |
| 87 and 151 | 13137 |