Least Common Multiple (LCM) of 31 and 132
The least common multiple (LCM) of 31 and 132 is 4092.
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 31 and 132?
First, calculate the GCD of 31 and 132 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 31 ÷ 132 = 0 remainder 31 |
| 2 | 132 ÷ 31 = 4 remainder 8 |
| 3 | 31 ÷ 8 = 3 remainder 7 |
| 4 | 8 ÷ 7 = 1 remainder 1 |
| 5 | 7 ÷ 1 = 7 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 70 and 123 | 8610 |
| 115 and 95 | 2185 |
| 138 and 134 | 9246 |
| 81 and 106 | 8586 |
| 156 and 118 | 9204 |