Every Day Counts
Mersenne Prime Exponent Days
 
Age: 23,210 days
Date of birth
Your 27th Mersenne Prime Exponent Day is on
Thursday
when you will be
44,497 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
08 Dec 2024
23,227
17
63
01 Jan 2025
23,251
41
63
12 Mar 2025
23,321
111
63
04 Sep 2025
23,497
287
64
01 Jan 2027
23,981
771
65
21 Oct 2039
28,657
5,447
78
06 Oct 2043
30,103
6,893
82
11 Mar 2063
37,199
13,989
101
15 Feb 2069
39,367
16,157
107
17 Jan 2081
43,721
20,511
119
04 Mar 2083
44,497
21,287
121
16 Jun 2094
48,619
25,409
133
11 Oct 2140
65,537
42,327
179
25 Nov 2235
100,279
77,069
274
14 Jun 2259
108,881
85,671
298
16 Mar 2320
131,071
107,861
358
08 Jul 7778
2,124,679
2,101,469
5817
Ordinal
Day Age
Date
Age
1st
2
08 May 1961
0
2nd
3
09 May 1961
0
3rd
5
11 May 1961
0
4th
7
13 May 1961
0
5th
13
19 May 1961
0
6th
17
23 May 1961
0
7th
19
25 May 1961
0
8th
31
06 Jun 1961
0
9th
61
06 Jul 1961
0
10th
89
03 Aug 1961
0
11th
107
21 Aug 1961
0
12th
127
10 Sep 1961
0
13th
521
09 Oct 1962
1
14th
607
03 Jan 1963
1
15th
1,279
05 Nov 1964
3
16th
2,203
18 May 1967
6
17th
2,281
04 Aug 1967
6
18th
3,217
25 Feb 1970
8
19th
4,253
27 Dec 1972
11
20th
4,423
15 Jun 1973
12
21st
9,689
15 Nov 1987
26
22nd
9,941
24 Jul 1988
27
23rd
11,213
17 Jan 1992
30
24th
19,937
06 Dec 2015
54
25th
21,701
04 Oct 2020
59
26th
23,209
20 Nov 2024
63
27th
44,497
04 Mar 2083
121
1
28th
86,243
20 Jun 2197
236