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 '149535360617552628115896488986113276402942263544425763128018960956587449138830828107064285698228730757371583103890642478911156247000134056525547249808152733936741854178977448657440905335952530063190523242798880210357974489119387613674263840034198561010263108053919576303789239952087337096831880710543531733791901175254500744082590123607403512781074531248595709405324344537232984593866471671017485483654635967759836610396083398812321629197216685806253573044590540212882092467190288830846283832111243676375423147738243' --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":"149535360617552628115896488986113276402942263544425763128018960956587449138830828107064285698228730757371583103890642478911156247000134056525547249808152733936741854178977448657440905335952530063190523242798880210357974489119387613674263840034198561010263108053919576303789239952087337096831880710543531733791901175254500744082590123607403512781074531248595709405324344537232984593866471671017485483654635967759836610396083398812321629197216685806253573044590540212882092467190288830846283832111243676375423147738243"},"decimal":false,"detail":2}}'