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 '273426498175321521743801311544202365024682381281778241100494093820537833664599945404626644459063711618006271233421172216076246912674029908067179648240264690737777893781637697623256492184827758978234549681410010537304281264933066980415198507902755120612866554108571184775944439127946977149301898982938453608129337986014995921417647839222458083794639090586540693863816062028167639166211509961770069981989165071418301348100114593086969105502275429027521153591234255847665975376890829705764035970555842242556751970087914525273088036477262332826699466195123563044817027275366704493151243908045871511257685611625064591028283248505999417959736647886550068470247144643809811162237236187152095589663593562033590158838581' --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":"273426498175321521743801311544202365024682381281778241100494093820537833664599945404626644459063711618006271233421172216076246912674029908067179648240264690737777893781637697623256492184827758978234549681410010537304281264933066980415198507902755120612866554108571184775944439127946977149301898982938453608129337986014995921417647839222458083794639090586540693863816062028167639166211509961770069981989165071418301348100114593086969105502275429027521153591234255847665975376890829705764035970555842242556751970087914525273088036477262332826699466195123563044817027275366704493151243908045871511257685611625064591028283248505999417959736647886550068470247144643809811162237236187152095589663593562033590158838581"},"decimal":false,"detail":2}}'