P · Proven prime
Value
3258271752…51<10350>
term (2^47575-1)*(2^865-1)*(2^55-1)*1082401/(2^9515-1)/(2^4325-1)/(2^275-1)/856351
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 (10,350 digits).
N-1 and N+1
Checking N-1 / N+1 factorization…
fdb number id:1100000000849209761 --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":1100000000849209761},"decimal":false,"detail":2}}'