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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 #1100000009075005500 1,661 digits created 2026-08-11

Value

23351577024812510638158750382715504879740730405828338729983866197221965190507939486140223948708509805854032438513023164976542927738955281108231093314338220845667927229038941387632821872357670692171003129164127729539638864683847232420164260746297419928208661049859956592707375984840216702739587881707536028210067668664638495000745181166893270107900208901327082908296902655100819617627207693498941863925992324000306991785923884987499689887982070661800937071836504964938092517695609483075029877540367774773380216437937757555193441653098308942864059329299393452900634004938139581163298327814073744669714725535733486750549530923653998581834303890870293944516450433758634420385529184952794055683191642911690486113055835810315060314956777310872021857534058938851420625384042661175063279282231711460618150011118087631092247031216179135177762380693514469000833645343675604489695024375875110924546962273142683336420888927798988052115237344936240054509460727333676242742924142632471422558674145411655790923207428001178231389185301901636906437129422598926927801481664963010505572869734908069025386248285433565694705083914878889897975290915310500410448922371527889991941037979993231908398978510128575489233177656433270253264453897208387342061792522506736709020742744313423054737755375565606842588736576312942027438374696232198434918907094212335789792700906999536743515047679105954796951021492831827597973947126399259014533137009456845460542561313233900045377739707911371708683441830923831700443002471488453073955301708276368021934163400708275975285031746525090659389901717488637977982574181581724619251116593175555289929400347744387035245830022417353305455239642295861681791
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 14 of the certificate chain of a 1,797-digit prime (143 intermediate primes).

Certified number1,797-digit prime
Certificatedownload
Certificate chainshow step 14 of 143

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009075005500 --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":1100000009075005500},"decimal":true,"detail":2}}'