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 '36778658875728447948372789702198054237401281999659885435652819546067662170163133530467868659667804878282850200525213253835800862258767420080255084144886525985463510260828312462071626638714676000422390745425596842886654370005366372140313140667329537805399397570585405664239496116307505241626631183925480319670802089346593670180274591152825250831224799158118346958185782680243791537374366974697128476216859204562205750046379839621958127' --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":"36778658875728447948372789702198054237401281999659885435652819546067662170163133530467868659667804878282850200525213253835800862258767420080255084144886525985463510260828312462071626638714676000422390745425596842886654370005366372140313140667329537805399397570585405664239496116307505241626631183925480319670802089346593670180274591152825250831224799158118346958185782680243791537374366974697128476216859204562205750046379839621958127"},"decimal":false,"detail":2}}'