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 #1100000009071048581 588 digits created 2026-08-10

Value

656893271434916685357231294381495741656353877718059857607341260520211530539095968531084874405564588717575539694821564107074346329488996579765139620080499659030715618235042876369500061610027698919310524123653429506550257820047220205860982520823480307541818515471832377773117137620690108112495056237555860951717997219581113312207663252143008236961634887313132065147938357234382696793129890564021143877975554096566808621484618901539317771379446392945086431340028540163678989710771123483490314763833602256998237133098209463039189771277859595638798362152771653647731814254998211604078845741459
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 160 of the certificate chain of a 2,643-digit prime (201 intermediate primes).

Certified number2,643-digit prime
Certificatedownload
Certificate chainshow step 160 of 201

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009071048581 --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":1100000009071048581},"decimal":true,"detail":2}}'