Least Common Multiple (LCM) of 90 and 130
The least common multiple (LCM) of 90 and 130 is 1170.
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 90 and 130?
First, calculate the GCD of 90 and 130 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 90 ÷ 130 = 0 remainder 90 |
| 2 | 130 ÷ 90 = 1 remainder 40 |
| 3 | 90 ÷ 40 = 2 remainder 10 |
| 4 | 40 ÷ 10 = 4 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 31 and 131 | 4061 |
| 183 and 194 | 35502 |
| 177 and 161 | 28497 |
| 171 and 130 | 22230 |
| 198 and 61 | 12078 |