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 '30859552741958107640907096861706894297248731776112959754138425934214946443489780824253390765845801093274332077385583522312286299471896561185230671946055820148688051362717721217789741703676169787804845438902546905331235011870458378602049411215092718333491102370609115427631647159143495729781432080043808717484070108910153866360920013671901241099555707679994802271058933338883814888073614770777010426525335589075516718326204315925187042293584009455992581642272964937410218687112053235610340166290361697538157758660816091051247047439167304757782519454910015026322095627221893079343453881239160552323164299080419321835333030264450216965855047473417080504573364917553086254966466416062794361568801058078349186263775671177643449817625578247810204196817963612700956458555000662867607891742112842204383358490736373525890919825371421269031343908152863814365775148116409862591' --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":"30859552741958107640907096861706894297248731776112959754138425934214946443489780824253390765845801093274332077385583522312286299471896561185230671946055820148688051362717721217789741703676169787804845438902546905331235011870458378602049411215092718333491102370609115427631647159143495729781432080043808717484070108910153866360920013671901241099555707679994802271058933338883814888073614770777010426525335589075516718326204315925187042293584009455992581642272964937410218687112053235610340166290361697538157758660816091051247047439167304757782519454910015026322095627221893079343453881239160552323164299080419321835333030264450216965855047473417080504573364917553086254966466416062794361568801058078349186263775671177643449817625578247810204196817963612700956458555000662867607891742112842204383358490736373525890919825371421269031343908152863814365775148116409862591"},"decimal":false,"detail":2}}'