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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 #1100000008859756836 1,853 digits created 2026-06-10

Value

27467010116296520117244533132831256556658557184023974328818295592532289797167099107328868400715073522878131331075665417099831701419165598018232241936218190102373760493813570349333215593178526836729721395819059158546786847034151866404341049491002293632157644190349954684161610274809815785907176352155552794491980433578181207442687218898058550760625839374820821503771227641249416649067757789687470690901366028557042316063717094232889653708358178051855464347071159726361391361364998484858334032173107528975651856690842403712198860713531326061179099920189125995939224024174501014427596149857492578931012325876082556362057374477697749507095546535427537458813419403827516876600307786218904022748507113307718297300823899073559278261870132956491154334759498277278401989252285140845610964791364162435990718057940360194037179541359809393455768555792147751283180278702923305782312466494664287506689590835708705814857126413127776038672835954168255340973356244828456384538140869905357363253355004970755570332412885324137635283647650305289915589874586350758253292723153413262503044023889073874888726535055303074770639176945373069656392459106137226382102472627557449597359100306518836524468036480566356474198135251232298188841090132595621749520433528099025263499924818906338992631709414245143941181407358830152293600759922000988781058412878110144491668760182159892181845695819386453371536109487698034643546681753672677740052127213622389402925313488084719940669768771282562612797547973025289791929328072238694701074688891525774400597140938844647593190878735485079002518760053335989919795624348405702517646052282928582208147318667348071886890362580304200560202087271376816033924892198693451330091465542839162481660289249397820748185164541190889622841051826104310671657987149111271449101514273760893220786479177446582886958543638722314795972782251191366069840703631880389
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 99 of the certificate chain of a 3,239-digit prime (226 intermediate primes).

Certified number3,239-digit prime
Certificatedownload
Certificate chainshow step 99 of 226

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008859756836 --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":1100000008859756836},"decimal":true,"detail":2}}'