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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 #1100000009072515267 2,524 digits created 2026-08-11

Value

1025337500337174806354509443712367181972395296433732679329731241793902815004525571219983001302137407417919471479613847506483285675222179033719593753325239793547769758331226486744154060385367285871546492251184866491581789294539658732741141043399149778087643807862968524710378834351513037956667075368606822315621078409837828323665396619615651858699891334824522807371320320536190561445698624725191953003043255011651163370730031139455623021286855054963048419515160752577407236750835130794999248321156078768714665479069911912097739205099411071102652466363871939477157694648788240980181268073590587054262264622055319302262888545100293514320118068044513126603679826440717777099377010508236668424705011416376793709324757714837538524723278144289836691199018729654766452990033884680333974501632637225162077414576522564431639095165184897987045895312332668707752916995001017967617776841138445531839913898376246706507970627889869753970605913270523526455020091459337230909631847038605487077964059610695178528679057829715066047518800329031218071431187907786384994539432737410695099785205354511460433980576966971825217067623021827335028135327593949597778965874632429966046811500773241431826522206152429701566916872092510539027720768077580334545251475477264993376009748155765429708462108340145907855076168838645315483650475828205077993874245712669272874063465449231741866417794761014221999400369776296211082613704966758910220471283104427880925749423250463618243542372049868805784645223171516291382371482522835194497924256675586756176102847990392630674830675230074328921890637933228805892543620885369857895627157425937679907846878406369581033157074429321957963751727204637943763174143559446324580019108408333881429329626334810825761639721414768395174939127418887712832708226200340956664149021180329048962317309604197602435232205092738917243201914522464093290217429539902065147585748579607348601154951974569668467865239051794510635923777124834010457010306318964788159800688280019850170297571994301410932236740819909388695169251687706637660114532123902669312995466103116078315564604842208609359993017382430785490730683835588137350458080494268731625523301802081785052352429030280911627935666420086041688345459295483212335691064566682137980727089843030056755906913843086922301350142599459650033769659550670204824462060896707545551563026347972559570080919992480678462802311501499743259819691566296883044763733905656787861031691478497812141145554429119370181212274312720815411456533636573824064271928919718026942893847431590350002856440706193317899
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 11 of the certificate chain of a 2,646-digit prime (195 intermediate primes).

Certified number2,646-digit prime
Certificatedownload
Certificate chainshow step 11 of 195

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009072515267 --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":1100000009072515267},"decimal":true,"detail":2}}'