Every Day Counts
Carol Prime Days
 
Age: 16,120 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
7
44
21 Nov 2025
16,127
7
44
13 Jul 2026
16,361
241
44
02 Aug 2026
16,381
261
44
02 Aug 2026
16,381
261
44
02 Aug 2026
16,381
261
44
29 Apr 2027
16,651
531
45
07 Nov 2027
16,843
723
46
22 Aug 2029
17,497
1,377
47
07 Jul 2031
18,181
2,061
49
29 Oct 2034
19,391
3,271
53
27 Apr 2036
19,937
3,817
54
12 Mar 2060
28,657
12,537
78
10 Jun 2101
43,721
27,601
119
07 Nov 2114
48,619
32,499
133
03 Mar 2161
65,537
49,417
179
16 Apr 2256
100,279
84,159
274
06 Aug 2340
131,071
114,951
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