Every Day Counts
Carol Prime Days
 
Age: 16,117 days
Date of birth
Your 5th Carol Prime Day is on
Monday
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
14 Apr 2025
16,127
10
44
14 Apr 2025
16,127
10
44
04 Dec 2025
16,361
244
44
24 Dec 2025
16,381
264
44
24 Dec 2025
16,381
264
44
24 Dec 2025
16,381
264
44
20 Sep 2026
16,651
534
45
31 Mar 2027
16,843
726
46
13 Jan 2029
17,497
1,380
47
28 Nov 2030
18,181
2,064
49
22 Mar 2034
19,391
3,274
53
19 Sep 2035
19,937
3,820
54
04 Aug 2059
28,657
12,540
78
01 Nov 2100
43,721
27,604
119
31 Mar 2114
48,619
32,502
133
25 Jul 2160
65,537
49,420
179
08 Sep 2255
100,279
84,162
274
29 Dec 2339
131,071
114,954
358
Ordinal
Day Age
Date
Age
1st
7
24 Feb 1981
0
2nd
47
05 Apr 1981
0
3rd
223
28 Sep 1981
0
4th
3,967
29 Dec 1991
10
5th
16,127
14 Apr 2025
44
1