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 '449477366075568391483247206011252537178316404538338655745411834803715752015103658756449137125526139339571878828175573822317936475072212637624049220308407938115698207919697197965440714186422659542107459250274245243652961453183646700594986875706727917874518965395115172619505508871122468744787962864220918086546677095475470354391545627810893126731449327420884356073593528350176897637623948654882829216681420992222584753096031888648164917567083530199287722129548500552048779341047824248625421815269885639969640882864183294071016541031789613089627445640987736200975603329437593266047851719451821026259462193349397898686612499566989631381394937454644560752845665034403284835567024118418631931879294077878281534707252593038221459611318694698827475795528624051526281189985822784809188731816491367797105739446944255398165939411297660614980700564785838042104363833510327824646978302621455873815479375402835084455493274352316177849134230143613850547159113584076536877775476526947387836928490205330986184505691458362756196738183727' --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":"449477366075568391483247206011252537178316404538338655745411834803715752015103658756449137125526139339571878828175573822317936475072212637624049220308407938115698207919697197965440714186422659542107459250274245243652961453183646700594986875706727917874518965395115172619505508871122468744787962864220918086546677095475470354391545627810893126731449327420884356073593528350176897637623948654882829216681420992222584753096031888648164917567083530199287722129548500552048779341047824248625421815269885639969640882864183294071016541031789613089627445640987736200975603329437593266047851719451821026259462193349397898686612499566989631381394937454644560752845665034403284835567024118418631931879294077878281534707252593038221459611318694698827475795528624051526281189985822784809188731816491367797105739446944255398165939411297660614980700564785838042104363833510327824646978302621455873815479375402835084455493274352316177849134230143613850547159113584076536877775476526947387836928490205330986184505691458362756196738183727"},"decimal":false,"detail":2}}'