Mersenne Prime/Current Status
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Currently known Mersenne Primes
The list of all known Mersenne primes is as follows:
Prime $p$ | Prime $M_p$ | Number of digits in $M_p$ | Date discovered | Discovered by | |
---|---|---|---|---|---|
1 | $ 2 $ | $ 3 $ | $ 1 $ | Known to Euclid | |
2 | $ 3 $ | $ 7 $ | $ 1 $ | Known to Euclid | |
3 | $ 5 $ | $ 31 $ | $ 2 $ | Known to Euclid | |
4 | $ 7 $ | $ 127 $ | $ 3 $ | Known to Euclid | |
5 | $ 13 $ | $ 8191 $ | $ 4 $ | 1456 | |
6 | $ 17 $ | $ 131 \, 071 $ | $ 6 $ | 1588 | Pietro Antonio Cataldi |
7 | $ 19 $ | $ 524 \, 287 $ | $ 6 $ | 1588 | Pietro Antonio Cataldi |
8 | $ 31 $ | $ 2 \, 147 \, 483 \, 647 $ | $ 10 $ | 1772 | Leonhard Paul Euler |
9 | $ 61 $ | $ 2 \cdotp 305 \times 10^{18} $ | $ 19 $ | 1883 | Ivan Mikheevich Pervushin |
10 | $ 89 $ | $ 6 \cdotp 189 \times 10^{26} $ | $ 27 $ | 1911 | R.E. Powers |
11 | $ 107 $ | $ 1 \cdotp 622 \times 10^{32} $ | $ 33 $ | 1914 | R.E. Powers |
12 | $ 127 $ | $ 1 \cdotp 701 \times 10^{38} $ | $ 39 $ | 1876 | François Édouard Anatole Lucas |
13 | $ 521 $ | $ 6 \cdotp 865 \times 10^{156} $ | $ 157 $ | 30 Jan 1952 | Raphael Mitchel Robinson |
14 | $ 607 $ | $ 5 \cdotp 311 \times 10^{182} $ | $ 183 $ | 30 Jan 1952 | Raphael Mitchel Robinson |
15 | $ 1279 $ | $ 1 \cdotp 041 \times 10^{385} $ | $ 386 $ | 25 Jun 1952 | Raphael Mitchel Robinson |
16 | $ 2203 $ | $ 1 \cdotp 476 \times 10^{663} $ | $ 664 $ | 7 Oct 1952 | Raphael Mitchel Robinson |
17 | $ 2281 $ | $ 4 \cdotp 461 \times 10^{686} $ | $ 687 $ | 9 Oct 1952 | Raphael Mitchel Robinson |
18 | $ 3217 $ | $ 2 \cdotp 591 \times 10^{968} $ | $ 969 $ | 8 Sept 1957 | Hans Ivar Riesel |
19 | $ 4253 $ | $ 1 \cdotp 908 \times 10^{1280} $ | $ 1281 $ | 3 Nov 1961 | Alexander Hurwitz |
20 | $ 4423 $ | $ 2 \cdotp 855 \times 10^{1331} $ | $ 1332 $ | 3 Nov 1961 | Alexander Hurwitz |
21 | $ 9689 $ | $ 4 \cdotp 782 \times 10^{2916} $ | $ 2917 $ | 11 May 1963 | Donald Bruce Gillies |
22 | $ 9941 $ | $ 3 \cdotp 461 \times 10^{2992} $ | $ 2993 $ | 16 May 1963 | Donald Bruce Gillies |
23 | $ 11 \, 213 $ | $ 2 \cdotp 814 \times 10^{3375} $ | $ 3376 $ | 2 Jun 1963 | Donald Bruce Gillies |
24 | $ 19 \, 937 $ | $ 4 \cdotp 315 \times 10^{6001} $ | $ 6002 $ | 4 Mar 1971 | Bryant Tuckerman |
25 | $ 21 \, 701 $ | $ 4 \cdotp 487 \times 10^{6532} $ | $ 6533 $ | 30 Oct 1978 | Landon Curt Noll and Ariel Nickel |
26 | $ 23 \, 209 $ | $ 4 \cdotp 029 \times 10^{6986} $ | $ 6987 $ | 9 Feb 1979 | Landon Curt Noll |
27 | $ 44 \, 497 $ | $ 8 \cdotp 545 \times 10^{13 \, 394} $ | $ 13 \, 395 $ | 8 Apr 1979 | Harry Lewis Nelson and David Slowinski |
28 | $ 86 \, 243 $ | $ 5 \cdotp 369 \times 10^{25 \, 961} $ | $ 25 \, 962 $ | 25 Sept 1982 | David Slowinski |
29 | $ 110 \, 503 $ | $ 5 \cdotp 219 \times 10^{33 \, 264} $ | $ 33 \, 265 $ | 28 Jan 1988 | Walt Colquitt and Luke Welsh |
30 | $ 132 \, 049 $ | $ 5 \cdotp 127 \times 10^{39 \, 750} $ | $ 39 \, 751 $ | 19 Sept 1983 | David Slowinski |
31 | $ 216 \, 091 $ | $ 7 \cdotp 461 \times 10^{65 \, 049} $ | $ 65 \, 050 $ | 1 Sept 1985 | David Slowinski |
32 | $ 756 \, 839 $ | $ 1 \cdotp 741 \times 10^{227 \, 831} $ | $ 227 \, 832 $ | 19 Feb 1992 | David Slowinski and Paul Gage |
33 | $ 859 \, 433 $ | $ 1 \cdotp 295 \times 10^{258 \, 715} $ | $ 258 \, 716 $ | 4 Jan 1994 | David Slowinski and Paul Gage |
34 | $ 1 \, 257 \, 787 $ | $ 4 \cdotp 122 \times 10^{378 \, 631} $ | $ 378 \, 632 $ | 3 Sept 1996 | David Slowinski and Paul Gage |
35 | $ 1 \, 398 \, 269 $ | $ 8 \cdotp 147 \times 10^{420 \, 920} $ | $ 420 \, 921 $ | 13 Nov 1996 | GIMPS / Joel Armengaud |
36 | $ 2 \, 976 \, 221 $ | $ 6 \cdotp 233 \times 10^{895 \, 931} $ | $ 895 \, 932 $ | 24 Aug 1997 | GIMPS / Gordon Spence |
37 | $ 3 \, 021 \, 377 $ | $ 1 \cdotp 274 \times 10^{909 \, 525} $ | $ 909 \, 526 $ | 27 Jan 1998 | GIMPS / Roland Clarkson |
38 | $ 6 \, 972 \, 593 $ | $ 4 \cdotp 371 \times 10^{2 \, 098 \, 959} $ | $ 2 \, 098 \, 960 $ | 1 Jun 1999 | GIMPS / Nayan Hajratwala |
39 | $ 13 \, 466 \, 917 $ | $ 9 \cdotp 249 \times 10^{4 \, 053 \, 945} $ | $ 4 \, 053 \, 946 $ | 14 Nov 2001 | GIMPS / Michael Cameron |
40 | $ 20 \, 996 \, 011 $ | $ 1 \cdotp 260 \times 10^{6 \, 320 \, 429} $ | $ 6 \, 320 \, 430 $ | 17 Nov 2003 | GIMPS / Michael Shafer |
41 | $ 24 \, 036 \, 583 $ | $ 2 \cdotp 994 \times 10^{7 \, 235 \, 732} $ | $ 7 \, 235 \, 733 $ | 15 May 2004 | GIMPS / Josh Findley |
42 | $ 25 \, 964 \, 951 $ | $ 1 \cdotp 222 \times 10^{7 \, 816 \, 229} $ | $ 7 \, 816 \, 230 $ | 18 Feb 2005 | GIMPS / Martin Nowak |
43 | $ 30 \, 402 \, 457 $ | $ 3 \cdotp 154 \times 10^{9 \, 152 \, 051} $ | $ 9 \, 152 \, 052 $ | 15 Dec 2005 | GIMPS / Curtis Cooper and Steven Boone |
44 | $ 32 \, 582 \, 657 $ | $ 1 \cdotp 246 \times 10^{9 \, 808 \, 358} $ | $ 9 \, 808 \, 358 $ | 4 Sept 2006 | GIMPS / Curtis Cooper and Steven Boone |
45 | $ 37 \, 156 \, 667 $ | $ 2 \cdotp 023 \times 10^{11 \, 185 \, 271} $ | $ 11 \, 185 \, 272 $ | 6 Sept 2008 | GIMPS / Hans-Michael Elvenich |
46 | $ 42 \, 643 \, 801 $ | $ 1 \cdotp 699 \times 10^{12 \, 837 \, 063} $ | $ 12 \, 837 \, 064 $ | 12 Apr 2009 | GIMPS / Odd Magnar Strindmo |
47 | $ 43 \, 112 \, 609 $ | $ 3 \cdotp 165 \times 10^{12 \, 978 \, 188} $ | $ 12 \, 978 \, 189 $ | 23 Aug 2008 | GIMPS / Edson Smith |
$ 57 \, 885 \, 161 $ | $ 5 \cdotp 818 \times 10^{17 \, 425 \, 169} $ | $ 17 \, 425 \, 170 $ | 25 Jan 2013 | GIMPS / Curtis Cooper | |
$ 74 \, 207 \, 281 $ | $ 3 \cdotp 003 \times 10^{22 \, 338 \, 617} $ | $ 22 \, 338 \, 618 $ | 07 Jan 2016 | GIMPS / Curtis Cooper | |
$ 77 \, 232 \, 917 $ | $ 4 \cdotp 673 \times 10^{23 \, 249 \, 424} $ | $ 23 \, 249 \, 425 $ | 26 Dec 2017 | GIMPS / Jon Pace | |
$ 82 \, 589 \, 933 $ | $ 1 \cdotp 488 \times 10^{24 \, 862 \, 047} $ | $ 24 \, 862 \, 048 $ | 07 Dec 2018 | GIMPS / Patrick Laroche |
Note that the index numbers of Mersenne primes after no. $47$ are uncertain, as there may still be undiscovered Mersenne primes between the $47$th and $51$st.
Not all numbers in that range have been explored yet.
Also see
This sequence is A000668 in the On-Line Encyclopedia of Integer Sequences (N. J. A. Sloane (Ed.), 2008).
The sequence of the index elements is A000043 in the On-Line Encyclopedia of Integer Sequences (N. J. A. Sloane (Ed.), 2008).
Sources
- 1986: David Wells: Curious and Interesting Numbers ... (previous) ... (next): $28$
- 1992: George F. Simmons: Calculus Gems ... (previous) ... (next): Chapter $\text {B}.2$: More about Numbers: Irrationals, Perfect Numbers and Mersenne Primes
- 1997: David Wells: Curious and Interesting Numbers (2nd ed.) ... (previous) ... (next): $28$
- 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): Mersenne numbers
- 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): Mersenne numbers
- 2008: Ian Stewart: Taming the Infinite ... (previous) ... (next): Chapter $7$: Patterns in Numbers: Euclid
- 2014: Christopher Clapham and James Nicholson: The Concise Oxford Dictionary of Mathematics (5th ed.) ... (previous) ... (next): Mersenne prime