Proof-code: L1209

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Samuel Yates began, and this site continues, a database of the largest known primes. Primes in that database are assigned a proof-code to show who should be credited with the discovery as well as what programs and projects they used. (Discoverers have one prover-entry, but may have many proof-codes because they use a variety of programs...)

This page provides data on L1209, one of those codes.

Code name (*): L1209 (See the descriptive data below.)

Persons (*): 1 (counting humans only)

Projects (*): 1 (counting projects only)

Display (HTML): Wong, PSieve, Srsieve, PrimeGrid, LLR

Number of primes: total 90

Unverified Primes: 0 (prime table entries marked 'Composite','Untested', or 'InProcess')

Score for Primes (*): total 48.4137, on current list 47.6065 (normalized score 25)

Entrance Rank (*): mean 2262.31 (minimum 250, maximum 4192)

Descriptive Data: (report abuse)

Fermat Number divisibility was checked using the following settings in OpenPFGW:

-gxo -a1 prime

OpenPFGW's bio page at the Prime Pages can be found HERE. Also, for more information about Fermat and Generalized Fermat Number divisors, please see Wilfrid Keller's sites:

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I am a member of this code and I would like to:Fermat Number divisibility was checked using the following settings in OpenPFGW:

-gxo -a1 prime

OpenPFGW's bio page at the Prime Pages can be found HERE. Also, for more information about Fermat and Generalized Fermat Number divisors, please see Wilfrid Keller's sites:

Below is additional information about this entry.

Display (text): Wong, PSieve, Srsieve, PrimeGrid, LLR

Display (short): Wong

Database id: 4553 (do not use this database id, it is subject to change)

Proof program: LLR The primes from this code accounts for 0.264% of the (active) primes and 0.032% of the (active) score for this program.

Entry last modified: 2021-05-06 10:38:41

Code name (*):	L1209 (See the descriptive data below.)
Persons (*):	1 (counting humans only)
Projects (*):	1 (counting projects only)
Display (HTML):	Wong, PSieve, Srsieve, PrimeGrid, LLR
Number of primes:	total 90
Unverified Primes:	0 (prime table entries marked 'Composite','Untested', or 'InProcess')
Score for Primes (*):	total 48.4137, on current list 47.6065 (normalized score 25)
Entrance Rank (*):	mean 2262.31 (minimum 250, maximum 4192)

Display (text):	Wong, PSieve, Srsieve, PrimeGrid, LLR
Display (short):	Wong
Database id:	4553 (do not use this database id, it is subject to change)
Proof program:	LLR The primes from this code accounts for 0.264% of the (active) primes and 0.032% of the (active) score for this program.
Entry last modified:	2021-05-06 10:38:41