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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 #1100000009055701808 2,213 digits created 2026-08-08

Value

26335828776284324811961171391206053491340194081820787038049598112906449174038128583338796714886719246609780000333355423902872653685275079181547061923594593349498570110872217859154057506186377714513191839434747677972881789186309748083818234189185649282050176837790993641596820985109177663085415608610441635989162222491791577468866734390788577187523709832882289840543267718339040677444518773603624061213312745298229776397158164249544780378642450059893581696874909504055680695969239448886293756662272801891714938510028622895925567492850700045616798205234218029423072561726876379583864500329173072031253804138727764871018892267475748672365482995152467524670019406819321724489890586707005183608302204972396826173811130009805466267511503767450334859881281952357954049487683468924122120120533715823703346286571261782104044241598303688904062518319157953662543056401366283835544278910770530178811098280806075986641330624733679625893362539536480086127540396194945515008522779264102313121110005306035585628538248068580373383924459974982075772000194301816032739195464826295738865644951765079760861146059179425296728840933115907740015185768746264260835709786401418040085227024230217473957892973221079091215488353268444169508844514979973612380622182655347930253580766428195808049984087009438544640835688325428285807191832194980788640432023702636728907456195394752652834310358600470706994015851013493150539191096296493665468708080003529457203469887551898882355937222577117710949905882007264784650407281785457354895093687821602289472896698081635886623291764158257563148731373461944887437709493972867305141521265234703653958782787272234073400718636220593718243856133440681156007324938758253997913284462115821130282576404700843204498918140305050948077459291198333432592070656079127543462253182794127453847881349792801148516130375107995849528861724862393331330390629347040531310531743989801773787534207164354593932967108725153572400513587705836639863167741390830263594076956292807838423194150400273178827041587175694144779091827699081331733595421537757464929818629817434724384746351881408467269075031316189783415514955800432047062504126617918790816363622251691752365397150189613505861564182477141459399776008983090278544886927113093
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 3 of the certificate chain of a 2,229-digit prime (170 intermediate primes).

Certified number2,229-digit prime
Certificatedownload
Certificate chainshow step 3 of 170

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009055701808 --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":1100000009055701808},"decimal":true,"detail":2}}'