Least Common Multiple (LCM) of 131 and 120
The least common multiple (LCM) of 131 and 120 is 15720.
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 131 and 120?
First, calculate the GCD of 131 and 120 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 131 ÷ 120 = 1 remainder 11 |
| 2 | 120 ÷ 11 = 10 remainder 10 |
| 3 | 11 ÷ 10 = 1 remainder 1 |
| 4 | 10 ÷ 1 = 10 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 195 and 161 | 31395 |
| 46 and 138 | 138 |
| 27 and 170 | 4590 |
| 87 and 180 | 5220 |
| 162 and 21 | 1134 |