Every Day Counts
Mersenne Prime Exponent Days
 
Age: 19,931 days
Date of birth
Your 24th Mersenne Prime Exponent Day is on
Thursday
when you will be
19,937 days old

These are primes p such that 2p - 1 is prime.

For Mersenne Prime Days see Mersenne Prime Days.

Remind me, please


Next Prime Events
Day Age
Event
Days Ahead
Year Age
30 Oct 2025
19,937
6
54
30 Oct 2025
19,937
6
54
30 Oct 2025
19,937
6
54
23 Dec 2025
19,991
60
54
12 Jan 2026
20,011
80
54
21 Jul 2026
20,201
270
55
24 Dec 2026
20,357
426
55
13 Sep 2032
22,447
2,516
61
14 Sep 2049
28,657
8,726
78
10 Jan 2079
39,367
19,436
107
12 Dec 2090
43,721
23,790
119
11 May 2104
48,619
28,688
133
05 Sep 2150
65,537
45,606
179
19 Oct 2245
100,279
80,348
274
08 May 2269
108,881
88,950
298
08 Feb 2330
131,071
111,140
358
01 Jun 7788
2,124,679
2,104,748
5817
Ordinal
Day Age
Date
Age
1st
2
02 Apr 1971
0
2nd
3
03 Apr 1971
0
3rd
5
05 Apr 1971
0
4th
7
07 Apr 1971
0
5th
13
13 Apr 1971
0
6th
17
17 Apr 1971
0
7th
19
19 Apr 1971
0
8th
31
01 May 1971
0
9th
61
31 May 1971
0
10th
89
28 Jun 1971
0
11th
107
16 Jul 1971
0
12th
127
05 Aug 1971
0
13th
521
02 Sep 1972
1
14th
607
27 Nov 1972
1
15th
1,279
30 Sep 1974
3
16th
2,203
11 Apr 1977
6
17th
2,281
28 Jun 1977
6
18th
3,217
20 Jan 1980
8
19th
4,253
21 Nov 1982
11
20th
4,423
10 May 1983
12
21st
9,689
09 Oct 1997
26
22nd
9,941
18 Jun 1998
27
23rd
11,213
11 Dec 2001
30
24th
19,937
30 Oct 2025
54
1
25th
21,701
29 Aug 2030
59
26th
23,209
15 Oct 2034
63
27th
44,497
26 Jan 2093
121
28th
86,243
16 May 2207
236