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 '22456177652648516367519700122664032896704154370015676055597444227603421896459195226817072013486193014401265108655041848245953117664576653683357399569521988606298185103679234262383459921724823856861339982485533583804158184681761235162893561492657061255937861079027391854928772173805417225136364688113263754870270255403862783152865104981224904773194037704215952873227374727142693730686924553823310328464783925665073489357582949810186381001158367898947761506404327251043857122365489432801675271354121163171396999915780970425361307707249551066097708550593247806308522838031408502022559607203065639724131105613200602981944186205378678831962357010276601993920290167373173572207415256586183612480979523355272142460728543955353600599895796225642279420922963042001376367698351697436982231337203726582691624326334054058417221771680972868298441105792993600959' --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":"22456177652648516367519700122664032896704154370015676055597444227603421896459195226817072013486193014401265108655041848245953117664576653683357399569521988606298185103679234262383459921724823856861339982485533583804158184681761235162893561492657061255937861079027391854928772173805417225136364688113263754870270255403862783152865104981224904773194037704215952873227374727142693730686924553823310328464783925665073489357582949810186381001158367898947761506404327251043857122365489432801675271354121163171396999915780970425361307707249551066097708550593247806308522838031408502022559607203065639724131105613200602981944186205378678831962357010276601993920290167373173572207415256586183612480979523355272142460728543955353600599895796225642279420922963042001376367698351697436982231337203726582691624326334054058417221771680972868298441105792993600959"},"decimal":false,"detail":2}}'