PRP · Probable prime
Enter a value, an expression, or a term with a variable like 10^n+1 to list a range.
Switch to Database id to look a number up by its stored id.
Reading never stores anything; use Create to add a number to the database.
See the expression syntax & functions reference.
Is factor of
Primality
This is a probable prime: it passes probabilistic tests but is not yet proven.
Build an ECPP certificate (for example with Primo) and upload it - it is stored and verified locally, then the number is promoted to proven prime.
Primo input filedownload .in
From the command linefdb · curl
fdb
fdb number '310063534408954807390361542638423470983300862415152711193545398335553384361033706051114496262019992142226511152876751285688980371233907958248631819043709087879719092377916745241011061508061890318306567081212915502118771000468641328220969217588752831198441536476669180402741619057786542912481399289776758443196929951272293345478502179685353177108509127224940019601186576598432269799383907571887909420658430876269941958001077243862134647307705538318120163993078003249549530540074341464231500554286729705469246265827503459269865913074613313508916083684709173217687877869472138442828238163603591398351411719049193557772127214740933674159320064055963012706733824084356336130096406280706780963598007596602178659620248506975220259794344120749301296076099777794697771312230634816298136559409268523522337359659210212241341968606445276209969553467720950386059336686760125434025586305371292073095410769193655212902831671531335607223311798605103137658573225003989761195473183248327439352685230522074907482198402662234949641285982052962880959479348219428536651763519442923605013614921563061180476640049807323493441659567584977520452298935471225690349148696830945893460090517174029797653083179336196670734112931386323455124827378908113573633278921556602706060012235485195120341385215639336554496665668202578278289' --detail 2
curl
curl -s 'https://factordb.com:4059/rpc' -H 'Content-Type: application/json' -d '{"jsonrpc":"2.0","id":1,"method":"get_number","params":{"target":{"expr":"310063534408954807390361542638423470983300862415152711193545398335553384361033706051114496262019992142226511152876751285688980371233907958248631819043709087879719092377916745241011061508061890318306567081212915502118771000468641328220969217588752831198441536476669180402741619057786542912481399289776758443196929951272293345478502179685353177108509127224940019601186576598432269799383907571887909420658430876269941958001077243862134647307705538318120163993078003249549530540074341464231500554286729705469246265827503459269865913074613313508916083684709173217687877869472138442828238163603591398351411719049193557772127214740933674159320064055963012706733824084356336130096406280706780963598007596602178659620248506975220259794344120749301296076099777794697771312230634816298136559409268523522337359659210212241341968606445276209969553467720950386059336686760125434025586305371292073095410769193655212902831671531335607223311798605103137658573225003989761195473183248327439352685230522074907482198402662234949641285982052962880959479348219428536651763519442923605013614921563061180476640049807323493441659567584977520452298935471225690349148696830945893460090517174029797653083179336196670734112931386323455124827378908113573633278921556602706060012235485195120341385215639336554496665668202578278289"},"decimal":false,"detail":2}}'