Least Common Multiple (LCM) of 157 and 189
The least common multiple (LCM) of 157 and 189 is 29673.
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 157 and 189?
First, calculate the GCD of 157 and 189 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 157 ÷ 189 = 0 remainder 157 |
| 2 | 189 ÷ 157 = 1 remainder 32 |
| 3 | 157 ÷ 32 = 4 remainder 29 |
| 4 | 32 ÷ 29 = 1 remainder 3 |
| 5 | 29 ÷ 3 = 9 remainder 2 |
| 6 | 3 ÷ 2 = 1 remainder 1 |
| 7 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 200 and 154 | 15400 |
| 127 and 54 | 6858 |
| 19 and 191 | 3629 |
| 187 and 126 | 23562 |
| 123 and 98 | 12054 |