At this site we maintain a list of the 5000 Largest Known Primes which is updated hourly. This list is the most important databases at The Prime Pages: a collection of research, records and results all about prime numbers. This page summarizes our information about one of these primes.

This prime's information:

field (help) value Description: Phi(3, 10137747) + (137 · 10137748 + 731 · 10129293) · (108454 - 1)/999 Verification status (*): Proven Official Comment: Palindrome Unofficial Comments: This prime has 1 user comment below. Proof-code(s): (*): p44 : Broadhurst, OpenPFGW Decimal Digits: 275495   (log10 is 275494) Rank (*): 16711 (digit rank is 1) Entrance Rank (*): 1813 Currently on list? (*): short Submitted: 1/13/2012 16:17:11 CDT Last modified: 1/13/2012 23:50:23 CDT Database id: 103926 Status Flags: none Score (*): 42.6733 (normalized score 0.2603)

Archival tags:

There are certain forms classed as archivable: these prime may (at times) remain on this list even if they do not make the Top 5000 proper.  Such primes are tracked with archival tags.

Palindrome (archivable *)

Prime on list: yes, rank 8
Subcategory: "Palindrome"
(archival tag id 213781, tag last modified 2014-11-16 14:50:32)

User comments about this prime (disclaimer):

User comments are allowed to convey mathematical information about this number, how it was proven prime.... See our guidelines and restrictions.

David Broadhurst writes (11 Sep 2014): 

1 (0)_{129292} (137)_{2818} 1 (731)_{2818} (0)_{129292} 1

Verification data:

The Top 5000 Primes is a list for proven primes only. In order to maintain the integrity of this list, we seek to verify the primality of all submissions.  We are currently unable to check all proofs (ECPP, KP, ...), but we will at least trial divide and PRP check every entry before it is included in the list.

field value prime_id 103926 person_id 9 machine RedHat P4 P4 what trial_divided notes Command: /home/caldwell/client/pfgw -o -f -q"Phi(3,10^137747)+(137*10^137748+731*10^129293)*(10^8454-1)/999" 2>&1 PFGW Version 3.4.5.32BIT.20110215.x86_Dev [GWNUM 26.5] Phi(3,10^137747)....*(10^8454-1)/999 1/1 mro=0 trial factoring to 100402909 Phi(3,10^137747)+(137*10^137748+731*10^129293)*(10^8454-1)/999 has no small factor. [Elapsed time: 2130.580 seconds] modified 2012-02-19 19:07:48 created 2012-01-13 16:18:01 id 137441

field value prime_id 103926 person_id 9 machine RedHat Virtual STEM Server what prime notes Command: /home/caldwell/client/pfgw -tc -q"Phi(3,10^137747)+(137*10^137748+731*10^129293)*(10^8454-1)/999" 2>&1 PFGW Version 3.3.4.20100405.x86_Stable [GWNUM 25.14] Primality testing Phi(3,10^137747)+(137*10^137748+731*10^129293)*(10^8454-1)/999 [N-1/N+1, Brillhart-Lehmer-Selfridge] Running N-1 test using base 7 Running N-1 test using base 13 Running N+1 test using discriminant 19, base 14+sqrt(19) Calling N-1 BLS with factored part 46.94% and helper 0.00% (140.81% proof) Phi(3,10^137747)+(137*10^137748+731*10^129293)*(10^8454-1)/999 is prime! (25362.1632s+0.1884s) [Elapsed time: 7.05 hours] modified 2012-02-19 19:07:48 created 2012-01-13 16:29:59 id 137442