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 '4145948732405228797602624430523557237993384909820944127950015690124898282871374315337656078876804996015228669477259032768546255986002368567533384454001658830138828731267743323355466150348493183593816183119283023589084948876367159339389429436692036964148056271799522033709259702616543091113910619315737856217458805853318027381720379207554755172521411586976459104714797276010043145977756491767645736281788836090117411752412918755645165316144459443718401447409303572336859895433858461195047900152102063039048093601614011843818864967001173414406495297477208946625002625555566370421898007793338666672805615966692713740901565069224993719494883361647259676175129491160864663391827' --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":"4145948732405228797602624430523557237993384909820944127950015690124898282871374315337656078876804996015228669477259032768546255986002368567533384454001658830138828731267743323355466150348493183593816183119283023589084948876367159339389429436692036964148056271799522033709259702616543091113910619315737856217458805853318027381720379207554755172521411586976459104714797276010043145977756491767645736281788836090117411752412918755645165316144459443718401447409303572336859895433858461195047900152102063039048093601614011843818864967001173414406495297477208946625002625555566370421898007793338666672805615966692713740901565069224993719494883361647259676175129491160864663391827"},"decimal":false,"detail":2}}'