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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 #1100000009053827875 2,458 digits created 2026-08-07

Value

1923285702935131384286181455590204199298729641787729004319723080309157032334455258768784000154972680662751085507448486635354617693748819870350377261535387039065319383661977760438056000064247365077549234432505499984876893019653942181906190969251713601912869108001792443445340053971392480872967299567063799223163960793195752689831099571146560452009766809521947363678571436969290299679442318596653552258291545531758750641204408862620333610325542092205770865022865282130514707153033093241832724096828208517832327667777611497757369642426824256105235675267217138837558456867300744863722557636185045258380037181102871213865622657792884104498197517328549149762658236041365533192754708159787376347979208250822010174722474670766236576989791684684545985856049752221688981779483253390488992799222869092671709266245189194759981375348033028297268020156212812666900705353139988240022928487700147066798252126123749275502155105370896342401526204692494067457115604463605540734961214717543599765147823389596087605836003150512635044548210525324345465317066637716988421794296945384359659407893828775174561101093294106106196931934161111644258184628791082440013542839400797427483973477920012930419733241724460637948540171690246308999646210543914800745571359426484757306099096486793981848292044096710557406867304728141334553668345505952962026924750587982705574396540724588564788747287875447828635020949864414144544015833610898836445025811047500861952263334517659710642756678125756481684605468812520418296274133648506495411906621247296006213027817106264444029894346877479408031646681257358791795774609215596763112656397180847682082167816991642297002868462160503998496176307962095493259196369756965995387561685062508782916544777334607407554925043953782826262592993332340006443960260794623573974254196944389421284853336757627652034789657800589812739735644183897749201279538011638855058662077315576819941467607490330358002362440663401764923411453663172096216820757814490620569169679741128317711459961447748215946825601932249892597561006052078220510409637793307525651953916620069237753321006542850544885980780303850257450548922559837626392791686542402824066943723781498347663833921163081062977741950365651927032555779920218442218067788782790383930932165729623949414165851241716350105811008516298109335129584606614383814398006600300470164548635859325679156901876801346311802850912670630176604547218415617910674444542428130473411431731540039140147061712300325858173730020622865641494484037
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 12 of the certificate chain of a 2,577-digit prime (194 intermediate primes).

Certified number2,577-digit prime
Certificatedownload
Certificate chainshow step 12 of 194

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009053827875 --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":1100000009053827875},"decimal":true,"detail":2}}'