ARSE

Thu 24 Oct 2019

Cuban Prime Days

Enter your date of birth.
Find out when you will be celebrating!

Cuban primes are primes which are the difference of two consecutive cubes.

These are of the form:
**p = (x^3 - y^3)/(x - y)****x = y + 1**

All of these cuban primes are centred hexagonal.

The name "cuban prime" has to do with the role cubes (third powers) play in the equations, and has nothing to do with Cuba.

There is a variant of the cuban prime which comprises primes of the form:
**p = (x^3 - y^3 )/(x - y)****x = y + 2**

The first few members of this sequence are:

13, 109, 193, 433, 769, 1201, 1453, 2029, 3469, 3889, 4801, 10093, 12289, 13873, 18253, 20173, 21169, 22189, 28813, 37633, 43201, 47629, 60493, 63949, 65713, 69313