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 '11018871392927923303865791959412903233733023436484128546996607798214721104327444729088122157282675618757373267840372965505912856338459446746372580819241150398591736895785755514443715878299297957798094494273446374349673125037487946207900260859081419440508129421311959268266641207431054236726090392666453186658633603391319269118397452151027941908622915638448371698792763007690969157612303150159919646458651495337552319193762628501297418703605096712538291034157580532112268668044637032364472525310782484823450360709247823701387055564829937526229771339038696661945513618176633144199988984267859905560709036286370008690782412969656023330336421097525638366077034809439437733154656220555381789454333017926519258287716198509162702627076830538380024171358238205640037385162745102485162734190864865927659259059368336922828251273113688263936274923685082897428261692569771976779714426368997417949061677754742466109865581641120755736677376509193046314720719239796292623475114999907163556346744708659892826615573817589642055402496262128011908053571358675099465453420758333943013240737074611453455474170960485638356194277975483644984459893816098162561819806323597372779795317943425397168555823696066766180113251314228121936974013041767186742478950167787559552370023787' --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":"11018871392927923303865791959412903233733023436484128546996607798214721104327444729088122157282675618757373267840372965505912856338459446746372580819241150398591736895785755514443715878299297957798094494273446374349673125037487946207900260859081419440508129421311959268266641207431054236726090392666453186658633603391319269118397452151027941908622915638448371698792763007690969157612303150159919646458651495337552319193762628501297418703605096712538291034157580532112268668044637032364472525310782484823450360709247823701387055564829937526229771339038696661945513618176633144199988984267859905560709036286370008690782412969656023330336421097525638366077034809439437733154656220555381789454333017926519258287716198509162702627076830538380024171358238205640037385162745102485162734190864865927659259059368336922828251273113688263936274923685082897428261692569771976779714426368997417949061677754742466109865581641120755736677376509193046314720719239796292623475114999907163556346744708659892826615573817589642055402496262128011908053571358675099465453420758333943013240737074611453455474170960485638356194277975483644984459893816098162561819806323597372779795317943425397168555823696066766180113251314228121936974013041767186742478950167787559552370023787"},"decimal":false,"detail":2}}'