Every Day Counts
Mersenne Prime Exponent Days
 
Age: 27,859 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
19 Nov 2026
27,883
24
76
27 Jul 2028
28,499
640
78
01 Jan 2029
28,657
798
78
19 Jun 2030
29,191
1,332
79
17 Dec 2032
30,103
2,244
82
18 Dec 2041
33,391
5,532
91
22 May 2052
37,199
9,340
101
29 Apr 2058
39,367
11,508
107
31 Mar 2070
43,721
15,862
119
15 May 2072
44,497
16,638
121
28 Aug 2083
48,619
20,760
133
23 Dec 2129
65,537
37,678
179
05 Feb 2225
100,279
72,420
274
25 Aug 2248
108,881
81,022
298
28 May 2309
131,071
103,212
358
19 Sep 7767
2,124,679
2,096,820
5817
Ordinal
Day Age
Date
Age
1st
2
20 Jul 1950
0
2nd
3
21 Jul 1950
0
3rd
5
23 Jul 1950
0
4th
7
25 Jul 1950
0
5th
13
31 Jul 1950
0
6th
17
04 Aug 1950
0
7th
19
06 Aug 1950
0
8th
31
18 Aug 1950
0
9th
61
17 Sep 1950
0
10th
89
15 Oct 1950
0
11th
107
02 Nov 1950
0
12th
127
22 Nov 1950
0
13th
521
21 Dec 1951
1
14th
607
16 Mar 1952
1
15th
1,279
17 Jan 1954
3
16th
2,203
29 Jul 1956
6
17th
2,281
15 Oct 1956
6
18th
3,217
09 May 1959
8
19th
4,253
10 Mar 1962
11
20th
4,423
27 Aug 1962
12
21st
9,689
26 Jan 1977
26
22nd
9,941
05 Oct 1977
27
23rd
11,213
30 Mar 1981
30
24th
19,937
16 Feb 2005
54
25th
21,701
16 Dec 2009
59
26th
23,209
01 Feb 2014
63
27th
44,497
15 May 2072
121
1
28th
86,243
01 Sep 2186
236