Least Common Multiple (LCM) of 10 and 45
The least common multiple (LCM) of 10 and 45 is 90.
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 10 and 45?
First, calculate the GCD of 10 and 45 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 10 ÷ 45 = 0 remainder 10 |
| 2 | 45 ÷ 10 = 4 remainder 5 |
| 3 | 10 ÷ 5 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 98 and 106 | 5194 |
| 121 and 130 | 15730 |
| 139 and 124 | 17236 |
| 116 and 179 | 20764 |
| 114 and 72 | 1368 |