# "93074010508593618333...(6499 other digits)...83885253703080601131"

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: | "93074010508593618333...(6499 other digits)...83885253703080601131" |
---|---|

Verification status (*): | PRP |

Official Comment (*): | ECPP |

Proof-code(s): (*): | c6 : Larrosa, Primo |

Decimal Digits: | 6539 (log_{10} is 6538.96882843) |

Rank (*): | 84848 (digit rank is 3) |

Entrance Rank (*): | 28157 |

Currently on list? (*): | no |

Submitted: | 2/13/2004 14:24:31 CDT |

Last modified: | 2/13/2004 14:24:31 CDT |

Database id: | 68825 |

Blob database id: | 108 |

Status Flags: | Verify |

Score (*): | 31.1225 (normalized score 0) |

#### Description: (from blob table id=108)

This is bell number Bell(2841)

#### 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.

- Elliptic Curve Primality Proof (archivable *)
- Prime on list:
no, rank427

Subcategory: "ECPP"

(archival tag id 194806, tag last modified 2022-11-14 11:36:29)

#### 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 68825 person_id 9 machine Linux P4 2.8GHz what prp notes PFGW Version 20031027.x86_Dev (Beta 'caveat utilitor') [FFT v22.13 w/P4] Primality testing 9307401050...3080601131 [N-1/N+1, Brillhart-Lehmer-Selfridge] trial factoring to 1814229 Running N-1 test using base 2 Using SSE2 FFT Adjusting authentication level by 1 for PRIMALITY PROOF Reduced from FFT(3072,21) to FFT(3072,20) Reduced from FFT(3072,20) to FFT(3072,19) Reduced from FFT(3072,19) to FFT(3072,18) Reduced from FFT(3072,18) to FFT(3072,17) Reduced from FFT(3072,17) to FFT(3072,16) 43452 bit request FFT size=(3072,16) Running N-1 test using base 3 Using SSE2 FFT Adjusting authentication level by 1 for PRIMALITY PROOF Reduced from FFT(3072,21) to FFT(3072,20) Reduced from FFT(3072,20) to FFT(3072,19) Reduced from FFT(3072,19) to FFT(3072,18) Reduced from FFT(3072,18) to FFT(3072,17) Reduced from FFT(3072,17) to FFT(3072,16) 43452 bit request FFT size=(3072,16) Running N-1 test using base 7 Using SSE2 FFT Adjusting authentication level by 1 for PRIMALITY PROOF Reduced from FFT(3072,21) to FFT(3072,20) Reduced from FFT(3072,20) to FFT(3072,19) Reduced from FFT(3072,19) to FFT(3072,18) Reduced from FFT(3072,18) to FFT(3072,17) Reduced from FFT(3072,17) to FFT(3072,16) 43452 bit request FFT size=(3072,16) Running N+1 test using discriminant 17, base 1+sqrt(17) Using SSE2 FFT Adjusting authentication level by 1 for PRIMALITY PROOF Reduced from FFT(3072,21) to FFT(3072,20) Reduced from FFT(3072,20) to FFT(3072,19) Reduced from FFT(3072,19) to FFT(3072,18) Reduced from FFT(3072,18) to FFT(3072,17) Reduced from FFT(3072,17) to FFT(3072,16) 43460 bit request FFT size=(3072,16) Calling N-1 BLS with factored part 0.12% and helper 0.01% (0.36% proof) 9307401050...3080601131 is Fermat and Lucas PRP! (41.2718s+0.0037s) modified 2020-07-07 17:30:46 created 2004-02-13 14:27:01 id 73776

Query times: 0.0003 seconds to select prime, 0.0004 seconds to seek comments.

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