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 '470985365547483635607030130385683601757392450957092811012473885717221628037680405684726475010666765002314198365461730512661103156159911815667701728026543150901118532232205755750126448296555744283858959589402513242846338289781911287138004349153354579885358134021713531644935974377171560516880940635862177131897205836713976927480471698875230141043056050701233864234644472376709790727758221282721379786769105415967678299939229748930223114793333557830484364198296553792299073156722525120054696986062692570780371620156192761330521954633349189931695903423608591066967606286788935789256289542021137532835177349782586733460523235017551529028398690723594412156584726202267212911474423166195302985240552347435096122932463306420344855313486414075073909233482562958459709689322672554937107502545474640094187538727218362901045429165914320033916133881757147238412899719571924445767984148277412898056453989058643895950205168457281700780008091374474077728769468965647342760640301752794283491416143157287160431462912633337409389575196243105733959399814534724221181525073103683947' --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":"470985365547483635607030130385683601757392450957092811012473885717221628037680405684726475010666765002314198365461730512661103156159911815667701728026543150901118532232205755750126448296555744283858959589402513242846338289781911287138004349153354579885358134021713531644935974377171560516880940635862177131897205836713976927480471698875230141043056050701233864234644472376709790727758221282721379786769105415967678299939229748930223114793333557830484364198296553792299073156722525120054696986062692570780371620156192761330521954633349189931695903423608591066967606286788935789256289542021137532835177349782586733460523235017551529028398690723594412156584726202267212911474423166195302985240552347435096122932463306420344855313486414075073909233482562958459709689322672554937107502545474640094187538727218362901045429165914320033916133881757147238412899719571924445767984148277412898056453989058643895950205168457281700780008091374474077728769468965647342760640301752794283491416143157287160431462912633337409389575196243105733959399814534724221181525073103683947"},"decimal":false,"detail":2}}'