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 '30154827044281479517190978475769150122352526853002029653618732340214325026796235886131840595725345887109417852529036660010416364053585567453871239149568555782293424853984258318159353614364071429575769782112564674183062653410208162115184619372345149264178593214821185799984863083369980148272572453003050010373470485242316333722488172051274904872685839314183985759508362367722641454369832174276459338156056970855628173236517834314178318435892887841657330602702363651215090492759506071188414710031616444832732907507547694213620310647893139720735685423402405648604142993089117137470395024700347901114369650950287858000720010462620847783173601485930168895631546370857799447265583827653749983944745518634500428601705983625163720012890460246518247536967274198364591793649742305611444709519062056134653819532402110551848455460127788668446969573009685262591037044525895634570364305638940549334227157588835289341215378449515050853632690173586823886206183703174904663367700092291527053764375307287627580793921632957526419519704096408638863509057352390314869415061046636919878466687542963810103826259838782441643822025759613262541' --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":"30154827044281479517190978475769150122352526853002029653618732340214325026796235886131840595725345887109417852529036660010416364053585567453871239149568555782293424853984258318159353614364071429575769782112564674183062653410208162115184619372345149264178593214821185799984863083369980148272572453003050010373470485242316333722488172051274904872685839314183985759508362367722641454369832174276459338156056970855628173236517834314178318435892887841657330602702363651215090492759506071188414710031616444832732907507547694213620310647893139720735685423402405648604142993089117137470395024700347901114369650950287858000720010462620847783173601485930168895631546370857799447265583827653749983944745518634500428601705983625163720012890460246518247536967274198364591793649742305611444709519062056134653819532402110551848455460127788668446969573009685262591037044525895634570364305638940549334227157588835289341215378449515050853632690173586823886206183703174904663367700092291527053764375307287627580793921632957526419519704096408638863509057352390314869415061046636919878466687542963810103826259838782441643822025759613262541"},"decimal":false,"detail":2}}'