The 19th term in the sequence of cube numbers is 6859.
This sequence is generated by cubing each natural number (1, 2, 3, ...). Therefore, the nth term in the sequence is given by the formula n³. To find the 19th term, we simply cube 19: 19³ = 6859.
Understanding Cube Numbers
A cube number (or perfect cube) is a number obtained by multiplying a whole number by itself three times. For example:
- 1³ = 1 1 1 = 1
- 2³ = 2 2 2 = 8
- 3³ = 3 3 3 = 27
- and so on...
The sequence of cube numbers begins: 1, 8, 27, 64, 125, 216, 343, 512, 729, 1000, ...
This sequence is also known as OEIS A000578. (Cubic Number) While the provided reference table doesn't explicitly list the 19th term, the formula n³ directly provides the solution.