Least Common Multiple (LCM) of 158 and 100
The least common multiple (LCM) of 158 and 100 is 7900.
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 100?
First, calculate the GCD of 158 and 100 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 158 ÷ 100 = 1 remainder 58 |
| 2 | 100 ÷ 58 = 1 remainder 42 |
| 3 | 58 ÷ 42 = 1 remainder 16 |
| 4 | 42 ÷ 16 = 2 remainder 10 |
| 5 | 16 ÷ 10 = 1 remainder 6 |
| 6 | 10 ÷ 6 = 1 remainder 4 |
| 7 | 6 ÷ 4 = 1 remainder 2 |
| 8 | 4 ÷ 2 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 77 and 160 | 12320 |
| 20 and 16 | 80 |
| 60 and 25 | 300 |
| 200 and 21 | 4200 |
| 50 and 143 | 7150 |