173 · 2828808 - 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: | 173 · 2828808 - 1 |
|---|---|
| Verification status (*): | Proven |
| Official Comment (*): | [none] |
| Proof-code(s): (*): | L145 : Minovic, Ksieve, NewPGen, Rieselprime, LLR |
| Decimal Digits: | 249499 (log10 is 249498.30669238) |
| Rank (*): | 28556 (digit rank is 1) |
| Entrance Rank (*): | 222 |
| Currently on list? (*): | no |
| Submitted: | 5/7/2007 05:04:53 UTC |
| Last modified: | 3/11/2023 15:54:10 UTC |
| Removed (*): | 8/7/2012 08:50:17 UTC |
| Database id: | 80363 |
| Status Flags: | none |
| Score (*): | 42.3685 (normalized score 0.0473) |
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 80363 person_id 9 machine RedHat P4 P4 what trial_divided notes Command: /home/caldwell/client/TrialDiv/TrialDiv -q 173 2 828808 -1 2>&1 [Elapsed time: 9.714 seconds] modified 2020-07-07 22:30:41 created 2007-05-07 05:22:02 id 89835
field value prime_id 80363 person_id 9 machine RedHat P4 P4 what prime notes Command: /home/caldwell/client/llr.pl 173*2^828808-1 2>&1 Starting Lucas Lehmer Riesel prime test of 173*2^828808-1 V1 = 4 ; Computing U0... Done Computing U0. Starting Lucas-Lehmer loop... 173*2^828808-1 is prime! Time : 3575.801 sec. [Elapsed time: 3576 seconds] modified 2020-07-07 22:30:41 created 2007-05-07 05:23:01 id 89838
Query times: 0.0032 seconds to select prime, 0.0003 seconds to seek comments.
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