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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 #1100000008676371247 2,090 digits created 2026-03-10

Value

65709180416357585242731176266231054636162216016394869018510063459662724565909220285700759586360813274538882505118345604331971072332000111553881571852959875061320459786180866800319916624252439776885307881612302482333273479631852508135697687057931872233962093245423639539816670256529666572737585538553555832146879175574661027548778232614649149918178870920987831683564639438425818043222541743179941393969666996915611040697818372852587731144570688100537551739273776049071960241524141005810922489484889005019085831731925603505958241527643388954348854146972157579229402443733022809859485682165136424352882640107478874717641641135995879687158139436794384759318238780728730357011364686115491482348329967744821673776104377161699939631008046770735162085055518571150134609111227018179147848812118854817888055423501935297058988864683079967632026235198487782972921680255683045749045014998139638145358372056755044264652422823227620363989256747259339687415298342074698187441731086990447186935687932231744837943634902666635648924681374794643956153542087520604742199163782494517865694938141985785553560951719905286002336788592504864746241640972705677195804607583735250926433872570966368206649457961772347370164281675171271833384346798851889021454535186588093051734801777299843304776411447855410261285816389396742352888085966146448546774893959367415787353056545312718975956487527907265428913156370489248790053586600902818933535184071875615824016070006211684461507855608327505538869478698403394886938510959973888028702534093092110681546533041938840449076705549372313756138003282246831751664516587445497814774106930304359481231170404066101669461625296048431224559891557318041326039272377790217449628137800243037254722999267577330190114568000295083661707893916164055037293620216522014783214898057037626408111421136537322042164278078479501431477932650576669303819404954160500070941373518593118288639943225137813347201921028085409377162698837188870275401436741721255240893087583081651724093698170616188070478534217708124580228738449300326911790020697177860720716561129325969271326624677364908967743851690143521107
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 63 of the certificate chain of a 2,921-digit prime (212 intermediate primes).

Certified number2,921-digit prime
Certificatedownload
Certificate chainshow step 63 of 212

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008676371247 --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":1100000008676371247},"decimal":true,"detail":2}}'