Every Day Counts
Mersenne Prime Exponent Days
 
Age: 21,849 days
Date of birth
Your 26th Mersenne Prime Exponent Day is on
Friday
when you will be
23,209 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
14 Dec 2018
21,851
2
59
14 Mar 2020
22,307
458
61
01 Aug 2020
22,447
598
61
02 Sep 2022
23,209
1,360
63
14 Oct 2022
23,251
1,402
63
13 Oct 2024
23,981
2,132
65
02 Aug 2037
28,657
6,808
78
18 Jul 2041
30,103
8,254
82
21 Dec 2060
37,199
15,350
101
28 Nov 2066
39,367
17,518
107
30 Oct 2078
43,721
21,872
119
28 Mar 2092
48,619
26,770
133
24 Jul 2138
65,537
43,688
179
06 Sep 2233
100,279
78,430
274
26 Mar 2257
108,881
87,032
298
27 Dec 2317
131,071
109,222
358
19 Apr 7776
2,124,679
2,102,830
5817
Ordinal
Day Age
Date
Age
1st
2
18 Feb 1959
0
2nd
3
19 Feb 1959
0
3rd
5
21 Feb 1959
0
4th
7
23 Feb 1959
0
5th
13
01 Mar 1959
0
6th
17
05 Mar 1959
0
7th
19
07 Mar 1959
0
8th
31
19 Mar 1959
0
9th
61
18 Apr 1959
0
10th
89
16 May 1959
0
11th
107
03 Jun 1959
0
12th
127
23 Jun 1959
0
13th
521
21 Jul 1960
1
14th
607
15 Oct 1960
1
15th
1,279
18 Aug 1962
3
16th
2,203
27 Feb 1965
6
17th
2,281
16 May 1965
6
18th
3,217
08 Dec 1967
8
19th
4,253
09 Oct 1970
11
20th
4,423
28 Mar 1971
12
21st
9,689
27 Aug 1985
26
22nd
9,941
06 May 1986
27
23rd
11,213
29 Oct 1989
30
24th
19,937
17 Sep 2013
54
25th
21,701
17 Jul 2018
59
26th
23,209
02 Sep 2022
63
1
27th
44,497
14 Dec 2080
121
28th
86,243
02 Apr 2195
236