Every Day Counts
Mersenne Prime Exponent Days
 
Age: 27,100 days
Date of birth
Your 27th Mersenne Prime Exponent Day is on
Sunday
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
15 Dec 2025
27,103
3
74
30 Aug 2026
27,361
261
74
26 Nov 2026
27,449
349
75
26 Feb 2027
27,541
441
75
18 Mar 2030
28,657
1,557
78
03 Mar 2034
30,103
3,003
82
06 Aug 2053
37,199
10,099
101
14 Jul 2059
39,367
12,267
107
15 Jun 2071
43,721
16,621
119
30 Jul 2073
44,497
17,397
121
11 Nov 2084
48,619
21,519
133
09 Mar 2131
65,537
38,437
179
22 Apr 2226
100,279
73,179
274
09 Nov 2249
108,881
81,781
298
12 Aug 2310
131,071
103,971
358
03 Dec 7768
2,124,679
2,097,579
5817
Ordinal
Day Age
Date
Age
1st
2
04 Oct 1951
0
2nd
3
05 Oct 1951
0
3rd
5
07 Oct 1951
0
4th
7
09 Oct 1951
0
5th
13
15 Oct 1951
0
6th
17
19 Oct 1951
0
7th
19
21 Oct 1951
0
8th
31
02 Nov 1951
0
9th
61
02 Dec 1951
0
10th
89
30 Dec 1951
0
11th
107
17 Jan 1952
0
12th
127
06 Feb 1952
0
13th
521
06 Mar 1953
1
14th
607
31 May 1953
1
15th
1,279
03 Apr 1955
3
16th
2,203
13 Oct 1957
6
17th
2,281
30 Dec 1957
6
18th
3,217
23 Jul 1960
8
19th
4,253
25 May 1963
11
20th
4,423
11 Nov 1963
12
21st
9,689
12 Apr 1978
26
22nd
9,941
20 Dec 1978
27
23rd
11,213
14 Jun 1982
30
24th
19,937
03 May 2006
54
25th
21,701
02 Mar 2011
59
26th
23,209
18 Apr 2015
63
27th
44,497
30 Jul 2073
121
1
28th
86,243
16 Nov 2187
236