Every Day Counts
Mersenne Prime Exponent Days
 
Age: 23,275 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
25 Dec 2024
23,279
4
63
05 Feb 2025
23,321
46
63
31 Jul 2025
23,497
222
64
27 Nov 2026
23,981
706
65
07 Apr 2032
25,939
2,664
71
16 Sep 2039
28,657
5,382
78
01 Sep 2043
30,103
6,828
82
04 Feb 2063
37,199
13,924
101
11 Jan 2069
39,367
16,092
107
13 Dec 2080
43,721
20,446
119
28 Jan 2083
44,497
21,222
121
12 May 2094
48,619
25,344
133
06 Sep 2140
65,537
42,262
179
21 Oct 2235
100,279
77,004
274
10 May 2259
108,881
85,606
298
10 Feb 2320
131,071
107,796
358
03 Jun 7778
2,124,679
2,101,404
5817
Ordinal
Day Age
Date
Age
1st
2
03 Apr 1961
0
2nd
3
04 Apr 1961
0
3rd
5
06 Apr 1961
0
4th
7
08 Apr 1961
0
5th
13
14 Apr 1961
0
6th
17
18 Apr 1961
0
7th
19
20 Apr 1961
0
8th
31
02 May 1961
0
9th
61
01 Jun 1961
0
10th
89
29 Jun 1961
0
11th
107
17 Jul 1961
0
12th
127
06 Aug 1961
0
13th
521
04 Sep 1962
1
14th
607
29 Nov 1962
1
15th
1,279
01 Oct 1964
3
16th
2,203
13 Apr 1967
6
17th
2,281
30 Jun 1967
6
18th
3,217
21 Jan 1970
8
19th
4,253
22 Nov 1972
11
20th
4,423
11 May 1973
12
21st
9,689
11 Oct 1987
26
22nd
9,941
19 Jun 1988
27
23rd
11,213
13 Dec 1991
30
24th
19,937
01 Nov 2015
54
25th
21,701
30 Aug 2020
59
26th
23,209
16 Oct 2024
63
27th
44,497
28 Jan 2083
121
1
28th
86,243
16 May 2197
236