Every Day Counts
Mersenne Prime Exponent Days
 
Age: 21,981 days
Date of birth
Your 26th Mersenne Prime Exponent Day is on
Wednesday
when you will be
23,209 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
31 Oct 2018
21,991
10
60
12 Sep 2019
22,307
326
61
30 Jan 2020
22,447
466
61
02 Mar 2022
23,209
1,228
63
13 Apr 2022
23,251
1,270
63
12 Apr 2024
23,981
2,000
65
30 Jan 2037
28,657
6,676
78
15 Jan 2041
30,103
8,122
82
20 Jun 2060
37,199
15,218
101
28 May 2066
39,367
17,386
107
29 Apr 2078
43,721
21,740
119
26 Sep 2091
48,619
26,638
133
21 Jan 2138
65,537
43,556
179
06 Mar 2233
100,279
78,298
274
23 Sep 2256
108,881
86,900
298
26 Jun 2317
131,071
109,090
358
18 Oct 7775
2,124,679
2,102,698
5817
Ordinal
Day Age
Date
Age
1st
2
18 Aug 1958
0
2nd
3
19 Aug 1958
0
3rd
5
21 Aug 1958
0
4th
7
23 Aug 1958
0
5th
13
29 Aug 1958
0
6th
17
02 Sep 1958
0
7th
19
04 Sep 1958
0
8th
31
16 Sep 1958
0
9th
61
16 Oct 1958
0
10th
89
13 Nov 1958
0
11th
107
01 Dec 1958
0
12th
127
21 Dec 1958
0
13th
521
19 Jan 1960
1
14th
607
14 Apr 1960
1
15th
1,279
15 Feb 1962
3
16th
2,203
27 Aug 1964
6
17th
2,281
13 Nov 1964
6
18th
3,217
07 Jun 1967
8
19th
4,253
08 Apr 1970
11
20th
4,423
25 Sep 1970
12
21st
9,689
24 Feb 1985
26
22nd
9,941
03 Nov 1985
27
23rd
11,213
28 Apr 1989
30
24th
19,937
17 Mar 2013
54
25th
21,701
14 Jan 2018
59
26th
23,209
02 Mar 2022
63
1
27th
44,497
13 Jun 2080
121
28th
86,243
30 Sep 2194
236