Least Common Multiple (LCM) of 31 and 22
The least common multiple (LCM) of 31 and 22 is 682.
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 22?
First, calculate the GCD of 31 and 22 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 31 ÷ 22 = 1 remainder 9 |
| 2 | 22 ÷ 9 = 2 remainder 4 |
| 3 | 9 ÷ 4 = 2 remainder 1 |
| 4 | 4 ÷ 1 = 4 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 154 and 36 | 2772 |
| 161 and 157 | 25277 |
| 42 and 88 | 1848 |
| 120 and 157 | 18840 |
| 80 and 73 | 5840 |