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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 #1100000009052472387 1,420 digits created 2026-08-07

Value

7923869900938661932893592049347244818435795680598933416678602916679769773383520280013861473965179869079414301678086027831916677722793855591395022442659828637628174860147358506329727821664695436107823537638200467164625405239341398296773928817999788606434613473711869157480679956430679453208770699340792890615440103185953360082961973216264940957724577068399494745181332363502490567553621025183491768982583057329205548389611912157621550841939174241346028877953907297052415056527566122831773853384190765403188861974911358276351762088547332515248379112446645693472649525312606106127648406900220886878640696454659416173109192319497665455607528098382666779955114421829867739348631254399184318617700655115566757690185677091304272494387025830420502439580018480448436315516096950944724798582729758745500370232199251613829896786042374377105587759679442347794248489559974186612173009544019040487133732637606626670188537698475610674936741479037415940795971597286140743415077860214800236027703674504108628834433648294414155209530668043942509316230489691016994183968532991610625262581244423092161012740717369315351103159837760199283886421156786405582260062119894986695872011891426092694165101721461555102578940459605437597155108537522404248157675608468521490245775240619804514956401754197057693303350296290600816070351988820165852983622175330730415621737190590056882883784015612878892819695014108043546555401272557527102628822802359259
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 14 of the certificate chain of a 1,588-digit prime (128 intermediate primes).

Certified number1,588-digit prime
Certificatedownload
Certificate chainshow step 14 of 128

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009052472387 --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":1100000009052472387},"decimal":true,"detail":2}}'