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 '2241036443577941455066422562909668827976539426434574373717586803361487426345442584591649547837388327053592786923986227795300777383550914787634118484057861097256011713441781587700055839809579363587292891093896074902589685316535356002504817601013673212793625863362216187065916857315478231788736739037201118757500877893536337276410704497817616529437741589347135344206888642143910502610100153413791763507407740755303227196304661149442276383330667614390697727977065866670763351900913684105564817583037640481120400479852137321485171272859959505544250168454454486527605235548599058231650721665182800159880686333063324165115158394181971635424837049862049755277977878944522122695794942778506486735911018191779052639725759795244057336897742384244528642288090372786148148928442735992031681337613581819596070579695631063575417215489560950233188537136589827542937503310180025257180456580297436254936515032912661385697974388335702482306633359814957395026999018545235687809771477101681191706593744223294361490533061101866533880873268619796653577217052442074450509628884781033187128499150337738171242641211804690289854861874635824133327786545095659019757100831155113998777461560264015186175235786302214801680279633063842862102753136521704935506443889961914605189041573132543565063519229637846141825882280916643877201083000623' --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":"2241036443577941455066422562909668827976539426434574373717586803361487426345442584591649547837388327053592786923986227795300777383550914787634118484057861097256011713441781587700055839809579363587292891093896074902589685316535356002504817601013673212793625863362216187065916857315478231788736739037201118757500877893536337276410704497817616529437741589347135344206888642143910502610100153413791763507407740755303227196304661149442276383330667614390697727977065866670763351900913684105564817583037640481120400479852137321485171272859959505544250168454454486527605235548599058231650721665182800159880686333063324165115158394181971635424837049862049755277977878944522122695794942778506486735911018191779052639725759795244057336897742384244528642288090372786148148928442735992031681337613581819596070579695631063575417215489560950233188537136589827542937503310180025257180456580297436254936515032912661385697974388335702482306633359814957395026999018545235687809771477101681191706593744223294361490533061101866533880873268619796653577217052442074450509628884781033187128499150337738171242641211804690289854861874635824133327786545095659019757100831155113998777461560264015186175235786302214801680279633063842862102753136521704935506443889961914605189041573132543565063519229637846141825882280916643877201083000623"},"decimal":false,"detail":2}}'