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 '188126522252048684380073122891475916643502892420063728693187424968627854467166970371647985044717973008118659046137464997190867074886533917180741482318217898268703976251557407738916834414184211085779718826300798160279299015589125104825870337518058142883434343499345417221564691725676278005740412105507366538359327525859879877207304808444739556472905478672598551768995122350809843324866775375128766609134950751096116299876796801295895518650593362512188238845188244249748420468908159568583778772731985611394822934713978486695566186363319167261679640138669572561739720883123564425279871087719055039049100969868779269047371' --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":"188126522252048684380073122891475916643502892420063728693187424968627854467166970371647985044717973008118659046137464997190867074886533917180741482318217898268703976251557407738916834414184211085779718826300798160279299015589125104825870337518058142883434343499345417221564691725676278005740412105507366538359327525859879877207304808444739556472905478672598551768995122350809843324866775375128766609134950751096116299876796801295895518650593362512188238845188244249748420468908159568583778772731985611394822934713978486695566186363319167261679640138669572561739720883123564425279871087719055039049100969868779269047371"},"decimal":false,"detail":2}}'