factordbrpc · fdb
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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.

PRP · Probable prime
not in database 221 digits

Value

1086680177…43<221>
Is factor of

Primality

This is a probable prime: it passes probabilistic tests but is not yet proven.

Numbers below 300 digits are proved directly by the background prover - this one will be marked proven prime automatically, usually within moments. Reload to check.

From the command linefdb · curl
fdb
fdb number '10866801772379697557784458142550235540470699997120230402231050722552997912342640980718213991376165853120030289697144729673560609327126397542234256705036892013315195704715633666862894064055588018689585281579064046068477743' --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":"10866801772379697557784458142550235540470699997120230402231050722552997912342640980718213991376165853120030289697144729673560609327126397542234256705036892013315195704715633666862894064055588018689585281579064046068477743"},"decimal":false,"detail":2}}'