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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 #1100000009066267532 1,656 digits created 2026-08-10

Value

827956727564356777373628079516769438207538476877387312984370600851350727976950465834821153568745563363313669337607641257283413507019221314589959875469362821008035024503307547628599707555944929897756620986757062995713241734948161668521001019027656040724636511620759034426021708840472668409919845065092247851163922298392067931467654951560154085280282579986450048863232518612297887085098340289164243053486193118617084057372132337049360014584880180994417928566746656999515722345612429340478558102518413065202075845165060138447643651922437812321916753300099267811787992992580454960145519574208461936774865331007416709131288275579643564304108077255880072375579942414748112078161102275774945948667558361333667249931268026529057242560706635305999205824365664947751844641474387481273334986720148176920039843224975725897634064347668009194968768203037448870206381913093191557687324557246347103404490983400555946610838217278981842075307857624150298363786747584107688972192784023244104467016635272802354120920244214965002438463568828439158784531169686213151953737627742494629508334151428834310594848787331611821969047932349692876889185376350393583982895342044605128818508813730972684961545954649071930788807608846266409896236662322773821564034117734646614942039213701545130214267962643415501026961895956786473318547825203222174518940639430597845730411919252477855995437562603397781026649563813276614491677142478600356059860139767191663227832467313786094939049757106107510385439262096183776024786577634725551530413721006701213852636867723169655380111717097868799273078044769876833781132255698245681854885581587098732933605066056189715649063107354653773501359600554743763
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 8 of the certificate chain of a 1,722-digit prime (141 intermediate primes).

Certified number1,722-digit prime
Certificatedownload
Certificate chainshow step 8 of 141

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009066267532 --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":1100000009066267532},"decimal":true,"detail":2}}'