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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 #1100000008655787983 4,017 digits created 2026-03-02

Value

907899935992331101424859188388651336471989052941094866091417203612282113615217509253834243892171069805280956026108955518452088261727884912199416915578056484443696132349641024807001852302607065371873326910191255502586835403605331050696869695777965914654490682282595920064025712618612121159881479824464544303805518919551215566754681844860449687565266080731798786837007138678719729962359578171350786725925157330887920563345847127018362780556667485905235380669798831236839671597827085465613626264111817847038054974993498142108292093492512690883728080121402409720571687237404300564462356297034994195468132013628806448154663409412848831564502528492634713865733298254225110999287699886235752353114556497847292081655344438559751848897437639552683104264800739252967658344401571580533323266123882583362653108775530568107023088113189236157572936241203461386603925031249558560501711125626178476913058320573524513334496756308971328559044684343806036362147807349095370720733484784210105401739439741428779117785195850134738688779796762106131093208677887248611004542546322559712776249738384148419317379042723167074724547787845052283005902643997902007372448940093036165952936302122747120712110391514561944256046543855719355557737157886309946824999930896029021915964887821643537835640295988011298346092664094935470290130794589468958041753824954038957672383032443820953988226084595754575210632651441400441414375397493265988775949867498899853745558603953219091078380098606355369523200270208914790174340408205360340160414233949090757907058353015987286517991303117309064425037272002328220166096016313554720303120443799608401280254785694853314071828591155147230928716362719698076493513808874121933399876684546798546844092609977155142132921010774262348412341411763929551327520868091828989501986696524647844810294189133526298414940497810602846200106901799702915630908276356710036028663515824706306432857708195697358303466691370499842880276431066412654425132880067110858600568156427638394648932033070116033360628181621601858367975069256439004384117678782987458202255993613057541370653696498522511254955994086267056981533813592728184360317837360344772296013058043780105581570569125330984944505795300040767404860429157156657355165256832970573920845884468068415524969064226254972288471599089846082446073189584373626095730725856241465218830928448657908211507745742095097199874249479779000956276030222035355874898746153049612586423442434584784318729778354893377629407952599718712755753937339660434040623308415760034788150654561227854878028268300610272159677590295920784822345003593840569627739597436294789202612411891505952182942273441186080836780852574093805400389010997492405715819648316249629166133807278719677616306136242196751100253676689534947662047599627379543900170860297539375963334777722928639498892775223506860131504627849076304113389214442497803085463618929681969301373348150373057263639250760406428635596140693176080664005603503755390489874697977315109528307546885314747332389505201850157399162909771873201776732684000817920984522575593180051797431037413794467125502891822980877249446442531134237309166454632890829681114790232273588551355073288253968402460246674522060437232611022215822716633286260005609863457561999062494544401401007092450455188138421972580383141879523421392407739795090382468220515790289226754340487491183224926186295261216642125987439515079322027008364719634962668074370652102321184874705378377636576741324032339251784556537946808750433827286445045360461774212326234219722401449431337164925524822296004725465914159114064604233104793354565362543763245176077334100266925486290997462386137410146398808184553386756555753167215607224806657057701097754853975064258517605517093939611115888942462879272585398541554079422313962254696497650027569472573905057684294967523269592807726950572660770727339277991133103721393524851975063974805836884282349502572156883828998240054219606883364715803116880045757252353032713749002579840934313832792128930919469035167550798854665407517142458948934342147348940798104656119317734844580511
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 151 of the certificate chain of a 6,194-digit prime (396 intermediate primes).

Certified number6,194-digit prime
Certificatedownload
Certificate chainshow step 151 of 396

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008655787983 --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":1100000008655787983},"decimal":true,"detail":2}}'