Proof-code: A2

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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 A2, one of those codes.

Code name (*): A2

Persons (*): 1 (counting humans only)

Projects (*): 0 (counting projects only)

Display (HTML): Propper, Srsieve, PRST

Number of primes: total 84

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

Score for Primes (*): total 54.8659, on current list 54.8657 (normalized score 7240)

Entrance Rank (*): mean 355.62 (minimum 13, maximum 3935)

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Below is additional information about this entry.

Display (text): Propper, Srsieve, PRST

Display (short): Propper

Database id: 9943 (do not use this database id, it is subject to change)

Proof program: PRST The primes from this code accounts for 24.771% of the (active) primes and 59.522% of the (active) score for this program.

Entry last modified: 2026-02-12 12:37:20

Code name (*):	A2
Persons (*):	1 (counting humans only)
Projects (*):	0 (counting projects only)
Display (HTML):	Propper, Srsieve, PRST
Number of primes:	total 84
Unverified Primes:	0 (prime table entries marked 'Composite','Untested', or 'InProcess'
Score for Primes (*):	total 54.8659, on current list 54.8657 (normalized score 7240)
Entrance Rank (*):	mean 355.62 (minimum 13, maximum 3935)

Display (text):	Propper, Srsieve, PRST
Display (short):	Propper
Database id:	9943 (do not use this database id, it is subject to change)
Proof program:	PRST The primes from this code accounts for 24.771% of the (active) primes and 59.522% of the (active) score for this program.
Entry last modified:	2026-02-12 12:37:20