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 '948502537058438577000766761412720121226018670277801741273626629720065442405434617947053370552815122732472634546085583658811061253775841539846290914017713609263065762156711827372003606604885773387616538821869332723841791791270621933917524405180192169035781608902750272146351087785919907019894240094432812451669165796892781076649039669663614211147997028540835177622693061212552059285979821288954894729494570120327607395816600688749359754935464593540071499241849449576869832573434711612758939520646596053027545758304774124106487534599568459290319556439349256115221578255581725753795843546585506608983449429924249038447914895392083821712263542432697691778603887648977407163176070091666261270521203600382506471176816279551119541640016749617012629276407689974049832134743802513715587228354506182489981470891537972642224917515368120792671520941895385868188872915590439512834136614621089619162225230801135179215494734287102053924181068709658503923623094258797712959148629391990816152185142001047442256688929823462088536092855235680791376302607952324575707833262223695404556918302002741082780963012603422374380109535304676306208697656083069110344718734150012812979613153191139371370762384710355283583429935318777951002834590937699384501336669212149436028576703791290995890942534433892743178560139913570717353089006553130629110025445361428412825043843198499070639908423529232052967280185441120210748034348753326451366342747335087787570390172335713125874747347277185910182787766008409426277747152249446846865957235213366954066379770048617972068731632909394989095426481293444358807' --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":"948502537058438577000766761412720121226018670277801741273626629720065442405434617947053370552815122732472634546085583658811061253775841539846290914017713609263065762156711827372003606604885773387616538821869332723841791791270621933917524405180192169035781608902750272146351087785919907019894240094432812451669165796892781076649039669663614211147997028540835177622693061212552059285979821288954894729494570120327607395816600688749359754935464593540071499241849449576869832573434711612758939520646596053027545758304774124106487534599568459290319556439349256115221578255581725753795843546585506608983449429924249038447914895392083821712263542432697691778603887648977407163176070091666261270521203600382506471176816279551119541640016749617012629276407689974049832134743802513715587228354506182489981470891537972642224917515368120792671520941895385868188872915590439512834136614621089619162225230801135179215494734287102053924181068709658503923623094258797712959148629391990816152185142001047442256688929823462088536092855235680791376302607952324575707833262223695404556918302002741082780963012603422374380109535304676306208697656083069110344718734150012812979613153191139371370762384710355283583429935318777951002834590937699384501336669212149436028576703791290995890942534433892743178560139913570717353089006553130629110025445361428412825043843198499070639908423529232052967280185441120210748034348753326451366342747335087787570390172335713125874747347277185910182787766008409426277747152249446846865957235213366954066379770048617972068731632909394989095426481293444358807"},"decimal":false,"detail":2}}'