(214561 - 1)/8074991336582835391
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: | (214561 - 1)/8074991336582835391 |
---|---|
Verification status (*): | PRP |
Official Comment (*): | Mersenne cofactor, ECPP |
Unofficial Comments: | This prime has 1 user comment below. |
Proof-code(s): (*): | c8 : Broadhurst, Water, Primo |
Decimal Digits: | 4365 (log10 is 4364.3906248) |
Rank (*): | 92931 (digit rank is 1) |
Entrance Rank (*): | 35224 |
Currently on list? (*): | no |
Submitted: | 10/4/2004 16:38:13 UTC |
Last modified: | 3/11/2023 15:54:10 UTC |
Database id: | 71838 |
Status Flags: | Verify |
Score (*): | 29.8666 (normalized score 0) |
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.
- Mersenne cofactor (archivable *)
- Prime on list: no, rank 34
Subcategory: "Mersenne cofactor"
(archival tag id 195460, tag last modified 2023-10-16 19:37:15)- Elliptic Curve Primality Proof (archivable *)
- Prime on list: no, rank 591
Subcategory: "ECPP"
(archival tag id 195459, tag last modified 2024-03-24 06:37:14)
User comments about this prime (disclaimer):
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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 71838 person_id 9 machine Linux P4 2.8GHz what prp notes Command: /home/caldwell/client/pfgw -f -tc -q"(2^14561-1)/8074991336582835391" 2>&1 PFGW Version 20031027.x86_Dev (Beta 'caveat utilitor') [FFT v22.13 w/P4] Primality testing (2^14561-1)/8074991336582835391 [N-1/N+1, Brillhart-Lehmer-Selfridge] trial factoring to 1169910 Running N-1 test using base 13 Using SSE2 FFT Adjusting authentication level by 1 for PRIMALITY PROOF Reduced from FFT(1792,21) to FFT(1792,20) Reduced from FFT(1792,20) to FFT(1792,19) Reduced from FFT(1792,19) to FFT(1792,18) Reduced from FFT(1792,18) to FFT(1792,17) 29006 bit request FFT size=(1792,17) Running N+1 test using discriminant 31, base 17+sqrt(31) Using SSE2 FFT Adjusting authentication level by 1 for PRIMALITY PROOF Reduced from FFT(1792,21) to FFT(1792,20) Reduced from FFT(1792,20) to FFT(1792,19) Reduced from FFT(1792,19) to FFT(1792,18) Reduced from FFT(1792,18) to FFT(1792,17) 29014 bit request FFT size=(1792,17) Calling N-1 BLS with factored part 0.19% and helper 0.03% (0.63% proof) (2^14561-1)/8074991336582835391 is Fermat and Lucas PRP! (15.0542s+0.0211s) modified 2020-07-07 22:30:45 created 2004-10-04 16:53:00 id 76832
Query times: 0.0003 seconds to select prime, 0.0003 seconds to seek comments.
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