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 '148741919973002378943895014076274679235865477136873216205811859969633569210150835203527801712966508372233210794689473226803907585439218126102121035308179498947040315843535210083300002588398341063355943831506677298824540072902709402221420289509850198044299207514151373874017518583496108362558441752503115558384423111021448607226724777899569680664691279142599576258452218225348711968122521561289427659988445486924769949834382556500722996831799897675591795315321334081071899203542558653868857916132159446394122529753695478539766943728694760437101055394663345699251904624639736943847215067737547958961087363031882243161605625330785005079781393154270238213299013348597761213815036524608074251699451905468232241540067948947443193748744473359543002265953231671045233887887761974111499722429419796074071987862190999433038771934583711411707771867077380378540084492754946456562487294197646182389112559905828745495088821308946836937007424713218014166742716152821285654621444092543191672839207854629645692409801640667846494919725807443376112430628826542722252359917008709315959926104299755022802245886717560410158892852783641510341389699775933' --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":"148741919973002378943895014076274679235865477136873216205811859969633569210150835203527801712966508372233210794689473226803907585439218126102121035308179498947040315843535210083300002588398341063355943831506677298824540072902709402221420289509850198044299207514151373874017518583496108362558441752503115558384423111021448607226724777899569680664691279142599576258452218225348711968122521561289427659988445486924769949834382556500722996831799897675591795315321334081071899203542558653868857916132159446394122529753695478539766943728694760437101055394663345699251904624639736943847215067737547958961087363031882243161605625330785005079781393154270238213299013348597761213815036524608074251699451905468232241540067948947443193748744473359543002265953231671045233887887761974111499722429419796074071987862190999433038771934583711411707771867077380378540084492754946456562487294197646182389112559905828745495088821308946836937007424713218014166742716152821285654621444092543191672839207854629645692409801640667846494919725807443376112430628826542722252359917008709315959926104299755022802245886717560410158892852783641510341389699775933"},"decimal":false,"detail":2}}'