Least Common Multiple (LCM) of 158 and 20
The least common multiple (LCM) of 158 and 20 is 1580.
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 158 and 20?
First, calculate the GCD of 158 and 20 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 158 ÷ 20 = 7 remainder 18 |
| 2 | 20 ÷ 18 = 1 remainder 2 |
| 3 | 18 ÷ 2 = 9 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 132 and 78 | 1716 |
| 171 and 172 | 29412 |
| 167 and 88 | 14696 |
| 73 and 18 | 1314 |
| 66 and 144 | 1584 |