999998 · 10153256 - 1
At this site we maintain a list of the 5000 Largest Known Primes which is updated hourly. This list is the most important PrimePages database: 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:
| Description: | 999998 · 10153256 - 1 |
|---|---|
| Verification status (*): | Proven |
| Official Comment (*): | Near-repdigit |
| Proof-code(s): (*): | L554 : Barnes, Srsieve, LLR |
| Decimal Digits: | 153262 (log10 is 153261.99999913) |
| Rank (*): | 40777 (digit rank is 1) |
| Entrance Rank (*): | 9227 |
| Currently on list? (*): | no |
| Submitted: | 1/20/2011 05:58:34 UTC |
| Last modified: | 3/11/2023 15:54:10 UTC |
| Database id: | 97521 |
| Status Flags: | none |
| Score (*): | 40.8692 (normalized score 0.0163) |
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.
- Near-repdigit (archivable *)
- Prime on list: no, rank 88
Subcategory: "Near-repdigit"
(archival tag id 213091, tag last modified 2024-02-07 04:37:20)
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 97521 person_id 9 machine Ditto P4 P4 what trial_divided notes Command: /home/ditto/client/TrialDiv/TrialDiv -q 999998 10 153256 -1 2>&1 [Elapsed time: 9.407 seconds] modified 2020-07-07 22:30:32 created 2011-01-20 06:05:02 id 124430
field value prime_id 97521 person_id 9 machine Ditto P4 P4 what prime notes Command: /home/ditto/client/pfgw -tp -q"999998*10^153256-1" 2>&1 PFGW Version 20031027.x86_Dev (Beta 'caveat utilitor') [FFT v22.13 w/P4] Primality testing 999998*10^153256-1 [N+1, Brillhart-Lehmer-Selfridge] Running N+1 test using discriminant 3, base 1+sqrt(3) Using SSE2 FFT Adjusting authentication level by 1 for PRIMALITY PROOF Reduced from FFT(65536,20) to FFT(65536,19) Reduced from FFT(65536,19) to FFT(65536,18) Reduced from FFT(65536,18) to FFT(65536,17) Reduced from FFT(65536,17) to FFT(65536,16) 1018268 bit request FFT size=(65536,16) Calling Brillhart-Lehmer-Selfridge with factored part 69.89% 999998*10^153256-1 is prime! (-1765.4919s+0.0200s) [Elapsed time: 3.40 hours] modified 2020-07-07 22:30:32 created 2011-01-20 07:11:38 id 124434
Query times: 0.0002 seconds to select prime, 0.0002 seconds to seek comments.
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