Every Day Counts
Mersenne Prime Exponent Days
 
Age: 23,213 days
Date of birth
Your 27th Mersenne Prime Exponent Day is on
Friday
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
03 Jun 2024
23,227
14
63
27 Jun 2024
23,251
38
63
05 Sep 2024
23,321
108
63
28 Feb 2025
23,497
284
64
27 Jun 2026
23,981
768
65
16 Apr 2039
28,657
5,444
78
01 Apr 2043
30,103
6,890
82
04 Sep 2062
37,199
13,986
101
11 Aug 2068
39,367
16,154
107
13 Jul 2080
43,721
20,508
119
28 Aug 2082
44,497
21,284
121
10 Dec 2093
48,619
25,406
133
06 Apr 2140
65,537
42,324
179
21 May 2235
100,279
77,066
274
08 Dec 2258
108,881
85,668
298
10 Sep 2319
131,071
107,858
358
01 Jan 7778
2,124,679
2,101,466
5817
Ordinal
Day Age
Date
Age
1st
2
01 Nov 1960
0
2nd
3
02 Nov 1960
0
3rd
5
04 Nov 1960
0
4th
7
06 Nov 1960
0
5th
13
12 Nov 1960
0
6th
17
16 Nov 1960
0
7th
19
18 Nov 1960
0
8th
31
30 Nov 1960
0
9th
61
30 Dec 1960
0
10th
89
27 Jan 1961
0
11th
107
14 Feb 1961
0
12th
127
06 Mar 1961
0
13th
521
04 Apr 1962
1
14th
607
29 Jun 1962
1
15th
1,279
01 May 1964
3
16th
2,203
11 Nov 1966
6
17th
2,281
28 Jan 1967
6
18th
3,217
21 Aug 1969
8
19th
4,253
22 Jun 1972
11
20th
4,423
09 Dec 1972
12
21st
9,689
11 May 1987
26
22nd
9,941
18 Jan 1988
27
23rd
11,213
13 Jul 1991
30
24th
19,937
01 Jun 2015
54
25th
21,701
30 Mar 2020
59
26th
23,209
16 May 2024
63
27th
44,497
28 Aug 2082
121
1
28th
86,243
14 Dec 2196
236