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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 #1100000009047581912 1,081 digits created 2026-08-05

Value

2229436947301048746705357079680914079562213584735390048886619685818090177384465636178911791328483154656386186578666982498696029239947359928385279043249413215151710383457581797820354192441072337646116517802947727893249431295528144287350424740826654282620462935756089268581299189321956049117575432940206626583575899242539670970263463597938741484351009579871320666009984249646956931404350933257643631995748637909601077701067410313155995349574028950229857501486234291040605438836095610248847512472759488718266255363441421015340078372431609211706398110363773487318862661109500708838905111300134209856101152771399227585773395779072467844465185564672031350147834757913572676919826190831795942535720738990987502970128128164364347458359355883354882139861125538484193198997267841329939353571080584546189724925097639510110230791066392228867977270764608884025799312299923007525718758850640264686931244783180247054264323974784473571724064059763479429852817314835237738689374627144137854483890792136953994321563957991265938952410560421011310854062354531914919315332881661811887822433769673022741
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 31 of the certificate chain of a 1,462-digit prime (113 intermediate primes).

Certified number1,462-digit prime
Certificatedownload
Certificate chainshow step 31 of 113

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009047581912 --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":1100000009047581912},"decimal":true,"detail":2}}'