P · Proven prime
Value
1717759425…01<1857>
term (795^1275-1)*(795^85-1)*(795^25-1)*(795^15-1)/(795^425-1)/(795^255-1)/(795^75-1…
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.
Value
Primality
Proven by a stored certificate (1,857 digits).
N-1 and N+1
Checking N-1 / N+1 factorization…
fdb number id:1100000001050440577 --detail 2
curl -s 'https://factordb.com:4059/rpc' -H 'Content-Type: application/json' -d '{"jsonrpc":"2.0","id":1,"method":"get_number","params":{"target":{"id":1100000001050440577},"decimal":false,"detail":2}}'