Least Common Multiple (LCM) of 145 and 31
The least common multiple (LCM) of 145 and 31 is 4495.
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 145 and 31?
First, calculate the GCD of 145 and 31 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 145 ÷ 31 = 4 remainder 21 |
| 2 | 31 ÷ 21 = 1 remainder 10 |
| 3 | 21 ÷ 10 = 2 remainder 1 |
| 4 | 10 ÷ 1 = 10 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 141 and 34 | 4794 |
| 18 and 78 | 234 |
| 72 and 46 | 1656 |
| 184 and 100 | 4600 |
| 98 and 146 | 7154 |