Every Day Counts
Carol Prime Days
 
Age: 16,115 days
Date of birth
Your 5th Carol Prime Day is on
Friday
when you will be
16,127 days old

These are primes which are also Carol numbers.

Carol numbers are of the form (2n - 1)2 - 2

Carol numbers were first studied by Cletus Emmanuel, who named them after a friend, Carol G. Kirnon.

The sixth Carol prime is 1,046,527 so it's unlikely you'll ever have more than 5 Carol Prime Days. After that they go very big.

Remind me, please


Next Prime Events
Day Age
Event
Days Ahead
Year Age
21 Nov 2025
16,127
12
44
21 Nov 2025
16,127
12
44
13 Jul 2026
16,361
246
44
02 Aug 2026
16,381
266
44
02 Aug 2026
16,381
266
44
02 Aug 2026
16,381
266
44
29 Apr 2027
16,651
536
45
07 Nov 2027
16,843
728
46
22 Aug 2029
17,497
1,382
47
07 Jul 2031
18,181
2,066
49
29 Oct 2034
19,391
3,276
53
27 Apr 2036
19,937
3,822
54
12 Mar 2060
28,657
12,542
78
10 Jun 2101
43,721
27,606
119
07 Nov 2114
48,619
32,504
133
03 Mar 2161
65,537
49,422
179
16 Apr 2256
100,279
84,164
274
06 Aug 2340
131,071
114,956
358
Ordinal
Day Age
Date
Age
1st
7
03 Oct 1981
0
2nd
47
12 Nov 1981
0
3rd
223
07 May 1982
0
4th
3,967
06 Aug 1992
10
5th
16,127
21 Nov 2025
44
1