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 '3752409666562911015207983565574311422760356709582342634339725676740344163106345079159279735144027105765430346072683559016066143727863186737703239290211149433332606385033224132960684890984528487910953698808919987510021628261574080788966964495079824297606487217324716351251315277716754203193587080319176196745619597911759889487342282594187384468502131116729911467401882458127695093061679102029172698082845167110751877141807358004203218630417467445791848433831787439300292829337113004171899386255721106911713978805044211922521323179385116924116135382259164576840315199174381224120201052961508720066613198216004691009632519102136738682551343810457663503361852242194661491760762862776752227444483478496976189748975611138445428847829572081824712535236527361205557688164591723796244192601230380901081941586271014308641710566642138343163593250234599111058548101825525879462551894216958393336384087300124991727984046657986963486351591898693509048429202371521489601789360733784526706772351420642754337250492514447018116195984952871462789408580536846157101984288258970157776596689946331034751195840617974036805662187070821461236227574006595542435786215003647997117340949747444220500403597660324125708954381883588036365186379240737034088393127693560713387891851607916280364544531997261101180381706836666490235676294953561728697444282979954645468339681' --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":"3752409666562911015207983565574311422760356709582342634339725676740344163106345079159279735144027105765430346072683559016066143727863186737703239290211149433332606385033224132960684890984528487910953698808919987510021628261574080788966964495079824297606487217324716351251315277716754203193587080319176196745619597911759889487342282594187384468502131116729911467401882458127695093061679102029172698082845167110751877141807358004203218630417467445791848433831787439300292829337113004171899386255721106911713978805044211922521323179385116924116135382259164576840315199174381224120201052961508720066613198216004691009632519102136738682551343810457663503361852242194661491760762862776752227444483478496976189748975611138445428847829572081824712535236527361205557688164591723796244192601230380901081941586271014308641710566642138343163593250234599111058548101825525879462551894216958393336384087300124991727984046657986963486351591898693509048429202371521489601789360733784526706772351420642754337250492514447018116195984952871462789408580536846157101984288258970157776596689946331034751195840617974036805662187070821461236227574006595542435786215003647997117340949747444220500403597660324125708954381883588036365186379240737034088393127693560713387891851607916280364544531997261101180381706836666490235676294953561728697444282979954645468339681"},"decimal":false,"detail":2}}'