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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 #1100000008675223815 2,293 digits created 2026-03-09

Value

1320968381280257841384329863479951252875309377878346077415306513074888251950840190814734548444356969241599277387497284806935387064809042414301220371353257545980643346037660492658985700866350342949568695195729055982430818379725031710839112575092121583186559195917742803038835347390520182600979422724540091857964870825609218639491568657652257936572503731235887499157813332778307577180125460387752314702294364158612716244864776632787569785831349687235536365918072399422687909714514049699155253741627016292522848529071424873828489942020619396935229956487759176890168925808307167048159042143256156618217977150592541023942180966450433608952748237689747070197987488802282849716881645801641209798662430755244899729261950417777190748599545914913744275222125417532940320930199362520908262142848649767610421227684911805945630617271209668415183977517442594169813204348516236069696441837593066841948832110442696478212793834224885699235885404517580553770309122391816102042949762849545324014274385317538949887442245236773323822069294480653542086243355386717427964369937522429192346097278994290469141611251691681427703796259066979408404433867145318403360936524089555953233101147795238984963899767781714562805282118876898482440046431449001606347986193450607664206091710436869819970611613956857500650356924023748542353059800698287908177856899489030434032691958557522687580321114878294613039320308639322177722336318019313529995612007988113440655327479848540575434917514705349022988046335849770108862686512329580136411773591268853396096769998002879500048765853408147417286625197379135739895476380652587818058360674465694187150288593274816384375378408629737240657066706139304945733284511941214390182344649295869568839613306607533713801705739470035211242354468737580346579964450845835399723720764713909861751346923446386218847522772541879923523233894830659449689001723088986834016483438069018896031489511353652818263797612489146814873549215431386286062757307084080918207478044641204858600826145369729924882678279393892276633040343825160691655173164684057860930839535038046298006579283372483984827833969912875532355701841398614046829978586790043057836834995476045698116880529204298697837378512650289098681640491528350248688315897134318325324438847192199276094871506331935187845254539980065181793131748696738995713259
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 40 of the certificate chain of a 2,805-digit prime (214 intermediate primes).

Certified number2,805-digit prime
Certificatedownload
Certificate chainshow step 40 of 214

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008675223815 --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":1100000008675223815},"decimal":true,"detail":2}}'