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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 #1100000009080351642 1,708 digits created 2026-08-13

Value

2552747701336521329293896565336267642122698896333312073782206437387909703388472317164945137285163007606477128705889597255968133425093068068097227064303030455745362803996360095608373867266523070767428149694351315254204223232472244462980315483683891492809404633364701064265770901785089907416819730703483038251059246192218782477014848557894269157019622559329203909215670203197208372481241538290324245998362843712987207419688369918374449789979209909920367109617280654847595652227526676030812246702368645776870103321700743470744146536599627046476157673506970278702950595916374028890063076260298733533050092641872132705739678121385038094331610043684893536489137593391881150766974728417784893172792707057476103795616788861211679913701885665814156324030379703702490523962769801826711128809666477224108353575053020720865830177416201776327902108379358433192822665668989147649729166267284549158828441966185285573191402952957072368809914222317137110575998916695281168569675614714725697273078150818343459051580679004103583742382059756199988159732669863188929658515877364340945356270383469759556205400240066308179030731674628457053189539663019991689326554691564732920404739305261044234191282980129320610341023285986294640629309944745784009661455402230005312429547903994812429514791711251416421671036803943856165455671946657865542201426369927028619544865400545305881917272996284452399657349778676870099379770877234448485874729689667053834798398351874755628818517920973486779601273366987946803102860538961810773531089237643351304007538586301957180441493157233937111412674972683257237924064356260130707686394360439919879675361620385157610192030612396215398701205721130553826844040541508960390561265787238579963762414776439157
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 12 of the certificate chain of a 1,870-digit prime (147 intermediate primes).

Certified number1,870-digit prime
Certificatedownload
Certificate chainshow step 12 of 147

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009080351642 --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":1100000009080351642},"decimal":true,"detail":2}}'