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.

P · Proven prime
id #1100000009091290509 549 digits created 2026-08-18

Value

193347165613266461051292468596241621113882910119770376155376358935592089647658424115558019657180382069945911760517033676843220755454338359681093180393549471497885251667282054938052494601967755849047205242211680307898646747288226681466055212305838215195374728483435050493206545993249231149968361397443181806505270183839488057612201690719442644748304408332998289876357185405462366706042059315938818797155342021985247536401214804160920340296307887954172423277776508779073503360004564010451685642154205696966124269501875337573684822505087954896868953971
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 99 of the certificate chain of a 2,095-digit prime (129 intermediate primes).

Certified number2,095-digit prime
Certificatedownload
Certificate chainshow step 99 of 129

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009091290509 --detail 2 --decimal
curl
curl -s 'https://factordb.com:4059/rpc' -H 'Content-Type: application/json' -d '{"jsonrpc":"2.0","id":1,"method":"get_number","params":{"target":{"id":1100000009091290509},"decimal":true,"detail":2}}'