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Primo record

Partition(1289844341)
40000 decimal digits

The certification of this number was done by Paul Underwood with Primo 4.3.0. The certification process took 21.5 months using a 4 x 12 core AMD 6174.


20 greatest numbers certified with Primo
Partition(1289844341)
40000 decimal digits
 Certified by Paul Underwood (UK, 2020) [more...]
Certificate:
ecpp40000.7z.001 (10 MB)
ecpp40000.7z.002 (10 MB)
ecpp40000.7z.003 (10 MB)
ecpp40000.7z.004 (9.7 MB)
2116224 - 15905
34987 decimal digits
 Certified by Peter Kaiser (EU, 2017) [more...]
Certificate:
ecpp34987.7z.001 (10 MB)
ecpp34987.7z.002 (10 MB)
ecpp34987.7z.003 (10 MB)
ecpp34987.7z.004 (8 MB)
Palindrome
(14665 × 1034110 - 56641)/9999
34111 decimal digits
 Certified by Paul Underwood (EU, 2018) [more...]
Certificate:
ecpp34111.7z.001 (10 MB)
ecpp34111.7z.002 (10 MB)
ecpp34111.7z.003 (10 MB)
Picture(57885161)
34093 decimal digits
 Certified by Paul Underwood (EU, 2016) [more...]
Certificate:
ecpp34093.7z.001 (10 MB)
ecpp34093.7z.002 (10 MB)
ecpp34093.7z.003 (10 MB)
ecpp34093.7z.004 (5 MB)
Lucas(148091)
30950 decimal digits
 Certified by Paul Underwood (EU, 2015) [more...]
Certificate:
ecpp30950.7z.001 (10 MB)
ecpp30950.7z.002 (10 MB)
ecpp30950.7z.003 (10 MB)
ecpp30950.7z.004 (8.1 MB)
Lehmer-Ramanujan(331,2129)
29492 decimal digits
 Certified by Philippe Alsina, Pierre Gazzano, Nik Lygeros, Olivier Rozier and André Solaris (EU, 2015)
Certificate:
ecpp29492.7z.001 (11.7 MB)
ecpp29492.7z.002 (11.7 MB)
ecpp29492.7z.003 (10.1 MB)
Lucas(140057)
29271 decimal digits
 Certified by Peter Kaiser and Paul Underwood (EU, 2014) [more...]
Certificate:
ecpp29271.7z.001 (11.7 MB)
ecpp29271.7z.002 (11.7 MB)
ecpp29271.7z.003 (11 MB)
Factor of 1027669 + 7
27630 decimal digits
 Certified by Alfred Reich (EU, 2014) [more...]
Certificate:
ecpp27630.7z.001 (10 MB)
ecpp27630.7z.002 (8 MB)
Based on Bernoulli(9702)
26709 decimal digits
 Certified by Serge Batalov (RU, 2021) [more...]
Certificate:
ecpp26709.7z.001 (10 MB)
ecpp26709.7z.002 (7 MB)
1025333 - 2*105182 - 3
25333 decimal digits
 Certified by Robert Gelhar (US, 2020) [more...]
Certificate:
ecpp25333.7z.001 (10.0 MB)
ecpp25333.7z.002 (8.8 MB)
Factor of Phi(12345,7176)
25331 decimal digits
 Certified by Tom Wu (US, 2017) [more...]
Certificate:
ecpp25331.7z.001 (10.5 MB)
ecpp25331.7z.002 (7.0 MB)
Factor of Mersenne(84211)
25291 decimal digits
 Certified by Robert Gelhar (US, 2020) [more...]
Certificate:
ecpp25291.7z.001 (10 MB)
ecpp25291.7z.002 (9 MB)
(283339 + 1)/3
25088 decimal digits
 Certified by Tom Wu (US, 2014) [more...]
Certificate: ecpp25088.7z (23.5 MB)
Factor of Mersenne(82939)
24938 decimal digits
 Certified by Paul Underwood (UK, 2021) [more...]
Certificate:
ecpp24938.7z.001 (10 MB)
ecpp24938.7z.002 (3.7 MB)
Int(1.5137752) + 13566
24257 decimal digits
 Certified by Pierre Cami (EU, 2015)
Certificate: ecpp24257.7z (21.8 MB)
Lehmer-Ramanujan(691,1523)
23770 decimal digits
 Certified by Philippe Alsina, Pierre Gazzano, Nik Lygeros, Olivier Rozier and André Solaris (EU, 2014)
Certificate: ecpp23770.7z (22.1 MB)
(798*Bernoulli(8766))
/
(2267959*6468702182951641)
23743 decimal digits
 Certified by Robert Gelhar (US, 2021)
Certificate:
ecpp23743.7z.001 (10 MB)
ecpp23743.7z.002 (6.3 MB)
PrimV(67,-1,13081)
/
65419672274940815357
23451 decimal digits
 Certified by Paul Underwood (EU, 2019) [more...]
Certificate:
ecpp23451.7z.001 (10 MB)
ecpp23451.7z.002 (5.2 MB)
Lehmer-Ramanujan(257,1699)
22506 decimal digits
 Certified by Patrice Deloche, Nik Lygeros and Olivier Rozier (EU, 2014)
Certificate: ecpp22506.7z (20.2 MB)
1022250 + 57913
22251 decimal digits
 Certified by Pierre Cami (EU, 2014)
Certificate: ecpp22251.7z (19 MB)


ECPP records set with Primo
Partition(1289844341)
40000 decimal digits
 Certified by Paul Underwood (UK, 2020) [more...]
Certificate:
ecpp40000.7z.001 (10 MB)
ecpp40000.7z.002 (10 MB)
ecpp40000.7z.003 (10 MB)
ecpp40000.7z.004 (9.7 MB)
2116224 - 15905
34987 decimal digits
 Certified by Peter Kaiser (EU, 2017) [more...]
Certificate:
ecpp34987.7z.001 (10 MB)
ecpp34987.7z.002 (10 MB)
ecpp34987.7z.003 (10 MB)
ecpp34987.7z.004 (8 MB)
Picture(57885161)
34093 decimal digits
 Certified by Paul Underwood (EU, 2016) [more...]
Certificate:
ecpp34093.7z.001 (10 MB)
ecpp34093.7z.002 (10 MB)
ecpp34093.7z.003 (10 MB)
ecpp34093.7z.004 (8 MB)
Lucas(148091)
30950 decimal digits
 Certified by Paul Underwood (EU, 2015) [more...]
Certificate:
ecpp30950.7z.001 (10 MB)
ecpp30950.7z.002 (10 MB)
ecpp30950.7z.003 (10 MB)
ecpp30950.7z.004 (8.1 MB)
Lehmer-Ramanujan(331,2129)
29492 decimal digits
 Certified by Philippe Alsina, Pierre Gazzano, Nik Lygeros, Olivier Rozier and André Solaris (EU, 2015)
Certificate:
ecpp29492.7z.001 (11.7 MB)
ecpp29492.7z.002 (11.7 MB)
ecpp29492.7z.003 (10.1 MB)
Lucas(140057)
29271 decimal digits
 Certified by Peter Kaiser and Paul Underwood (EU, 2014) [more...]
Certificate:
ecpp29271.7z.001 (11.7 MB)
ecpp29271.7z.002 (11.7 MB)
ecpp29271.7z.003 (11 MB)
(32 × 106959 - 23)/99
6959 decimal digits
 Certified by Hans Rosenthal (EU, 2003).
Certificate: ecpp6959.zip (4.3 MB)
16282536 ... 36478311
5878 decimal digits
 Certified by Jose Luis Gomez Pardo (EU, 2003).
Certificate: ecpp5878b.zip (3.1 MB)
105019 + 43157099231631693
5020 decimal digits
 Certified by Giovanni and Marco La Barbera (EU, 2001).
Certificate: ecpp5020.zip (2.1 MB)
103999 + 4771
4000 decimal digits
 Certified by Giovanni and Marco La Barbera (EU, 2001).
Certificate: ecpp4000.zip (1.3 MB)
(3481223 - 1)/347
3106 decimal digits
 Certified by Giovanni and Marco La Barbera (EU, 2001).


Other primes

Links to some pages reporting primes certified with Primo: