42779 · 2322908 - 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: | 42779 · 2322908 - 1 |
|---|---|
| Verification status (*): | Proven |
| Official Comment (*): | [none] |
| Proof-code(s): (*): | g23 : Ballinger, Proth.exe |
| Decimal Digits: | 97210 (log10 is 97209.625070493) |
| Rank (*): | 54307 (digit rank is 1) |
| Entrance Rank (*): | 13 |
| Currently on list? (*): | no |
| Submitted: | 7/26/1999 21:23:14 UTC |
| Last modified: | 3/11/2023 15:54:10 UTC |
| Removed (*): | 6/18/2007 23:23:03 UTC |
| Database id: | 195 |
| Status Flags: | none |
| Score (*): | 39.467 (normalized score 0.0025) |
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 195 person_id 9 machine Windows XP P4 1.8GHz what prime notes PFGW Version 20021217.Win_Dev (Beta 'caveat utilitor') [FFT v22.7 w/P4] Running N+1 test using discriminant 3, base 1+sqrt(3) N+1: 42779*2^322908-1 265000/3Primality testing 42779*2^322908-1 [N+1, Brillhart-Lehmer-Selfridge] Calling Brillhart-Lehmer-Selfridge with factored part 100.00% 42779*2^322908-1 is prime! (4060.442000 seconds) 22925 modified 2003-03-25 17:23:54 created 2002-12-26 10:03:18 id 52450
Query times: 0.0002 seconds to select prime, 0.0003 seconds to seek comments.
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