Every Day Counts
Cuban Prime Days
 
Age: 15,046 days
Date of birth
Your 34th Cuban Prime Day is on
Sunday
when you will be
16,651 days old

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

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

Remind me, please


Next Prime Events
Day Age
Event
Days Ahead
Year Age
12 Jun 2026
15,053
7
41
27 Feb 2027
15,313
267
41
26 May 2027
15,401
355
42
15 Jul 2027
15,451
405
42
24 Mar 2029
16,069
1,023
43
21 May 2029
16,127
1,081
44
27 Oct 2030
16,651
1,605
45
07 May 2031
16,843
1,797
46
19 Feb 2033
17,497
2,451
47
04 Jan 2035
18,181
3,135
49
28 Apr 2038
19,391
4,345
53
26 Oct 2039
19,937
4,891
54
10 Sep 2063
28,657
13,611
78
08 Dec 2104
43,721
28,675
119
07 May 2118
48,619
33,573
133
31 Aug 2164
65,537
50,491
179
15 Oct 2259
100,279
85,233
274
04 Feb 2344
131,071
116,025
358
Ordinal
Day Age
Date
Age
1st
7
02 Apr 1985
0
2nd
19
14 Apr 1985
0
3rd
37
02 May 1985
0
4th
61
26 May 1985
0
5th
127
31 Jul 1985
0
6th
271
22 Dec 1985
0
7th
331
20 Feb 1986
0
8th
397
27 Apr 1986
1
9th
547
24 Sep 1986
1
10th
631
17 Dec 1986
1
11th
919
01 Oct 1987
2
12th
1,657
08 Oct 1989
4
13th
1,801
01 Mar 1990
4
14th
1,951
29 Jul 1990
5
15th
2,269
12 Jun 1991
6
16th
2,437
27 Nov 1991
6
17th
2,791
15 Nov 1992
7
18th
3,169
28 Nov 1993
8
19th
3,571
04 Jan 1995
9
20th
4,219
13 Oct 1996
11
21st
4,447
29 May 1997
12
22nd
5,167
19 May 1999
14
23rd
5,419
26 Jan 2000
14
24th
6,211
28 Mar 2002
17
25th
7,057
21 Jul 2004
19
26th
7,351
11 May 2005
20
27th
8,269
15 Nov 2007
22
28th
9,241
14 Jul 2010
25
29th
10,267
05 May 2013
28
30th
11,719
26 Apr 2017
32
31st
12,097
09 May 2018
33
32nd
13,267
22 Jul 2021
36
33rd
13,669
28 Aug 2022
37
34th
16,651
27 Oct 2030
45
1
35th
19,441
17 Jun 2038
53
36th
19,927
16 Oct 2039
54
37th
22,447
09 Sep 2046
61
38th
23,497
25 Jul 2049
64
39th
24,571
03 Jul 2052
67
40th
25,117
31 Dec 2053
68
41st
26,227
14 Jan 2057
71
42nd
27,361
22 Feb 2060
74
43rd
33,391
26 Aug 2076
91
44th
35,317
04 Dec 2081
96