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 '125096706062468089203381301286438375957171265211858515413052375636786586732786010454306609105542580124357301377734985513843788104933962657413464237501601518693789248875422825910432464172016038064583942523219769905474040590846579563216244967011100261894857953837538421139572428806184967437455400425710120344316260571043247964042660458620443829750300961610680334885210246116723234799046890002599777966073715564935743189351863342317166834225244951515126469501731886111438458198908080062444007607572267659209334192695851075225145178830681461845889622969672892138923098827590054439129419828634868952264818653865757438750315524281519968217532233908317001218955381893223669989322277434782894726527535195398419193052519624789062765742144088742689516512162515602265583287954966813305582679684920537321450270557495345968265943003808679061863154049798964260581867871967139371322276644590732036283813032978463874016912912391881935803470992020419561738221997274769900926147632438823571848391564278262856519767876077920171441111317939744071' --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":"125096706062468089203381301286438375957171265211858515413052375636786586732786010454306609105542580124357301377734985513843788104933962657413464237501601518693789248875422825910432464172016038064583942523219769905474040590846579563216244967011100261894857953837538421139572428806184967437455400425710120344316260571043247964042660458620443829750300961610680334885210246116723234799046890002599777966073715564935743189351863342317166834225244951515126469501731886111438458198908080062444007607572267659209334192695851075225145178830681461845889622969672892138923098827590054439129419828634868952264818653865757438750315524281519968217532233908317001218955381893223669989322277434782894726527535195398419193052519624789062765742144088742689516512162515602265583287954966813305582679684920537321450270557495345968265943003808679061863154049798964260581867871967139371322276644590732036283813032978463874016912912391881935803470992020419561738221997274769900926147632438823571848391564278262856519767876077920171441111317939744071"},"decimal":false,"detail":2}}'