
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:  10^{78942} + 10111100100111101 · 10^{39463} + 1 
Verification status (*):  Proven 
Official Comment:  Tetradic, palindrome 
Proofcode(s): (*):  p186 : Chaglassian, Ksieve, Tetradic, OpenPFGW 
Decimal Digits:  78943 (log_{10} is 78942) 
Rank (*):  45079 (digit rank is 1) 
Entrance Rank (*):  1173 
Currently on list? (*):  no 
Submitted:  10/21/2004 15:26:36 CDT 
Last modified:  1/8/2006 18:31:55 CDT 
Database id:  72107 
Status Flags:  none 
Score (*):  38.8255 (normalized score 0.0064) 

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.
 Tetradic (deprecated *)
 Prime on list: no, rank 6
Subcategory: "Tetradic"
(archival tag id 188567, tag last modified 20100315 12:50:24)  Palindrome (archivable *)
 Prime on list: no, rank 73
Subcategory: "Palindrome"
(archival tag id 188566, tag last modified 20160110 02:20:35)
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  72107 
person_id  9 
machine  Linux P4 2.8GHz 
what  prime 
notes  Command: /home/caldwell/client/pfgw f t q"10^78942+10111100100111101*10^39463+1" 2>&1 PFGW Version 20031027.x86_Dev (Beta 'caveat utilitor') [FFT v22.13 w/P4] Primality testing 10^78942+10111100100111101*10^39463+1 [N1, BrillhartLehmerSelfridge] trial factoring to 26475783 Running N1 test using base 11 Using SSE2 FFT Adjusting authentication level by 1 for PRIMALITY PROOF Reduced from FFT(32768,20) to FFT(32768,19) Reduced from FFT(32768,19) to FFT(32768,18) Reduced from FFT(32768,18) to FFT(32768,17) 524488 bit request FFT size=(32768,17) Running N1 test using base 13 Using SSE2 FFT Adjusting authentication level by 1 for PRIMALITY PROOF Reduced from FFT(32768,20) to FFT(32768,19) Reduced from FFT(32768,19) to FFT(32768,18) Reduced from FFT(32768,18) to FFT(32768,17) 524488 bit request FFT size=(32768,17) Running N1 test using base 17 Using SSE2 FFT Adjusting authentication level by 1 for PRIMALITY PROOF Reduced from FFT(32768,20) to FFT(32768,19) Reduced from FFT(32768,19) to FFT(32768,18) Reduced from FFT(32768,18) to FFT(32768,17) 524488 bit request FFT size=(32768,17) Running N1 test using base 19 Using SSE2 FFT Adjusting authentication level by 1 for PRIMALITY PROOF Reduced from FFT(32768,20) to FFT(32768,19) Reduced from FFT(32768,19) to FFT(32768,18) Reduced from FFT(32768,18) to FFT(32768,17) 524488 bit request FFT size=(32768,17) Calling BrillhartLehmerSelfridge with factored part 34.94% 10^78942+10111100100111101*10^39463+1 is prime! (919.4073s+0.0100s)

modified  20051005 19:02:35 
created  20041021 18:23:12 
id  77102 

Query times: 0.0004 seconds to select prime, 0.0006 seconds to seek comments.
