Least Common Multiple (LCM) of 164 and 42
The least common multiple (LCM) of 164 and 42 is 3444.
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 164 and 42?
First, calculate the GCD of 164 and 42 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 164 ÷ 42 = 3 remainder 38 |
| 2 | 42 ÷ 38 = 1 remainder 4 |
| 3 | 38 ÷ 4 = 9 remainder 2 |
| 4 | 4 ÷ 2 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 161 and 48 | 7728 |
| 123 and 126 | 5166 |
| 188 and 62 | 5828 |
| 116 and 48 | 1392 |
| 132 and 105 | 4620 |