Every Day Counts
Cuban Prime Days
 
Age: 6,362 days
Date of birth
Your 25th Cuban Prime Day is on
Sunday
when you will be
7,057 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
10 Jun 2026
6,367
5
17
01 Mar 2028
6,997
635
19
12 Apr 2028
7,039
677
19
30 Apr 2028
7,057
695
19
19 Jan 2029
7,321
959
20
16 Sep 2029
7,561
1,199
20
06 May 2030
7,793
1,431
21
08 Jun 2031
8,191
1,829
22
15 Jul 2035
9,689
3,327
26
08 Aug 2036
10,079
3,717
27
18 Mar 2037
10,301
3,939
28
25 May 2037
10,369
4,007
28
22 Nov 2041
12,011
5,649
32
17 Nov 2047
14,197
7,835
38
28 Feb 2053
16,127
9,765
44
14 Feb 2055
16,843
10,481
46
14 Oct 2058
18,181
11,819
49
10 Jun 2188
65,537
59,175
179
Ordinal
Day Age
Date
Age
1st
7
10 Jan 2009
0
2nd
19
22 Jan 2009
0
3rd
37
09 Feb 2009
0
4th
61
05 Mar 2009
0
5th
127
10 May 2009
0
6th
271
01 Oct 2009
0
7th
331
30 Nov 2009
0
8th
397
04 Feb 2010
1
9th
547
04 Jul 2010
1
10th
631
26 Sep 2010
1
11th
919
11 Jul 2011
2
12th
1,657
18 Jul 2013
4
13th
1,801
09 Dec 2013
4
14th
1,951
08 May 2014
5
15th
2,269
22 Mar 2015
6
16th
2,437
06 Sep 2015
6
17th
2,791
25 Aug 2016
7
18th
3,169
07 Sep 2017
8
19th
3,571
14 Oct 2018
9
20th
4,219
23 Jul 2020
11
21st
4,447
08 Mar 2021
12
22nd
5,167
26 Feb 2023
14
23rd
5,419
05 Nov 2023
14
24th
6,211
05 Jan 2026
17
25th
7,057
30 Apr 2028
19
1
26th
7,351
18 Feb 2029
20
27th
8,269
25 Aug 2031
22
28th
9,241
23 Apr 2034
25
29th
10,267
12 Feb 2037
28
30th
11,719
03 Feb 2041
32
31st
12,097
16 Feb 2042
33
32nd
13,267
01 May 2045
36
33rd
13,669
07 Jun 2046
37
34th
16,651
06 Aug 2054
45
35th
19,441
27 Mar 2062
53
36th
19,927
26 Jul 2063
54
37th
22,447
19 Jun 2070
61
38th
23,497
04 May 2073
64
39th
24,571
12 Apr 2076
67
40th
25,117
10 Oct 2077
68
41st
26,227
24 Oct 2080
71
42nd
27,361
02 Dec 2083
74
43rd
33,391
06 Jun 2100
91
44th
35,317
14 Sep 2105
96