Least Common Multiple (LCM) of 90 and 98
The least common multiple (LCM) of 90 and 98 is 4410.
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 98?
First, calculate the GCD of 90 and 98 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 90 ÷ 98 = 0 remainder 90 |
| 2 | 98 ÷ 90 = 1 remainder 8 |
| 3 | 90 ÷ 8 = 11 remainder 2 |
| 4 | 8 ÷ 2 = 4 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 47 and 193 | 9071 |
| 26 and 61 | 1586 |
| 180 and 31 | 5580 |
| 154 and 126 | 1386 |
| 91 and 142 | 12922 |