Least Common Multiple (LCM) of 31 and 147
The least common multiple (LCM) of 31 and 147 is 4557.
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 147?
First, calculate the GCD of 31 and 147 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 31 ÷ 147 = 0 remainder 31 |
| 2 | 147 ÷ 31 = 4 remainder 23 |
| 3 | 31 ÷ 23 = 1 remainder 8 |
| 4 | 23 ÷ 8 = 2 remainder 7 |
| 5 | 8 ÷ 7 = 1 remainder 1 |
| 6 | 7 ÷ 1 = 7 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 107 and 89 | 9523 |
| 103 and 159 | 16377 |
| 30 and 127 | 3810 |
| 46 and 33 | 1518 |
| 197 and 68 | 13396 |