Least Common Multiple (LCM) of 127 and 42
The least common multiple (LCM) of 127 and 42 is 5334.
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 127 and 42?
First, calculate the GCD of 127 and 42 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 127 ÷ 42 = 3 remainder 1 |
| 2 | 42 ÷ 1 = 42 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 157 and 129 | 20253 |
| 51 and 17 | 51 |
| 149 and 15 | 2235 |
| 160 and 99 | 15840 |
| 98 and 181 | 17738 |