Least Common Multiple (LCM) of 141 and 42
The least common multiple (LCM) of 141 and 42 is 1974.
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 141 and 42?
First, calculate the GCD of 141 and 42 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 141 ÷ 42 = 3 remainder 15 |
| 2 | 42 ÷ 15 = 2 remainder 12 |
| 3 | 15 ÷ 12 = 1 remainder 3 |
| 4 | 12 ÷ 3 = 4 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 67 and 113 | 7571 |
| 152 and 126 | 9576 |
| 197 and 127 | 25019 |
| 22 and 199 | 4378 |
| 166 and 191 | 31706 |