Every Day Counts
Mersenne Prime Exponent Days
 
Age: 19,428 days
Date of birth
Your 24th Mersenne Prime Exponent Day is on
Saturday
when you will be
19,937 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
28 Oct 2025
19,429
tomorrow
53
09 Nov 2025
19,441
13
53
04 Nov 2026
19,801
373
54
02 Feb 2027
19,891
463
54
20 Mar 2027
19,937
509
54
20 Mar 2027
19,937
509
54
02 Jun 2027
20,011
583
54
13 May 2028
20,357
929
55
02 Feb 2051
28,657
9,229
78
30 May 2080
39,367
19,939
107
01 May 2092
43,721
24,293
119
29 Sep 2105
48,619
29,191
133
24 Jan 2152
65,537
46,109
179
09 Mar 2247
100,279
80,851
274
26 Sep 2270
108,881
89,453
298
29 Jun 2331
131,071
111,643
358
20 Oct 7789
2,124,679
2,105,251
5817
Ordinal
Day Age
Date
Age
1st
2
20 Aug 1972
0
2nd
3
21 Aug 1972
0
3rd
5
23 Aug 1972
0
4th
7
25 Aug 1972
0
5th
13
31 Aug 1972
0
6th
17
04 Sep 1972
0
7th
19
06 Sep 1972
0
8th
31
18 Sep 1972
0
9th
61
18 Oct 1972
0
10th
89
15 Nov 1972
0
11th
107
03 Dec 1972
0
12th
127
23 Dec 1972
0
13th
521
21 Jan 1974
1
14th
607
17 Apr 1974
1
15th
1,279
18 Feb 1976
3
16th
2,203
30 Aug 1978
6
17th
2,281
16 Nov 1978
6
18th
3,217
09 Jun 1981
8
19th
4,253
10 Apr 1984
11
20th
4,423
27 Sep 1984
12
21st
9,689
27 Feb 1999
26
22nd
9,941
06 Nov 1999
27
23rd
11,213
01 May 2003
30
24th
19,937
20 Mar 2027
54
1
25th
21,701
17 Jan 2032
59
26th
23,209
04 Mar 2036
63
27th
44,497
16 Jun 2094
121
28th
86,243
03 Oct 2208
236