Least Common Multiple (LCM) of 42 and 33
The least common multiple (LCM) of 42 and 33 is 462.
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 42 and 33?
First, calculate the GCD of 42 and 33 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 42 ÷ 33 = 1 remainder 9 |
| 2 | 33 ÷ 9 = 3 remainder 6 |
| 3 | 9 ÷ 6 = 1 remainder 3 |
| 4 | 6 ÷ 3 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 148 and 49 | 7252 |
| 87 and 190 | 16530 |
| 59 and 76 | 4484 |
| 175 and 113 | 19775 |
| 38 and 178 | 3382 |