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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 #1100000009080395441 1,800 digits created 2026-08-13

Value

207357385815481615393622909952506238117537689406690230929498454675681872990353294591494550609814669359270418014230551788642559016487813311909157817762114369555980468068854698904814715538487214688108823089017728125914791551683468216083521579845564558712152400486299231468073710927733953589046692242313858174108527798154618730136942368462299312684551406951165404887441491043448744368172755284062205053777434180830780348345493084960417305345228320187742909517693315315806937631274576424833187320020318150442929723572947037651364805136531359353585228845464802047207045899321503658599413922756385379030174625475117186008632719509901638434863106114291799935288483023735995358202832606194974361509992118623642462417233714084906812315240191183522968298118853132350482806749602423407342977651976984979232353380378947004255695432286266460920446157358985172492875968016725677749835322433961481802931266425043048165204955650748983553607659223456168748408542314714549990280855419674484753001581725200587320972941965597489184315610308213759489676339266166385226115801675841748134805560628840349875740217242210792346315915257585383384948138983670448192883135737060774598220515651497910943241181339514963520876314536897945938172351988706856429935811514437317503223914170601246840843634771798230657532113421374319214257005923034912617255943292690799116990527977635830211300062714438901007134327839657245076816631652317506656052295680807938857376169641336893295378586643959192790944990659310296905486974906031830897321978881754248152721391972156482097730728062368164960105289920095898308840151828575398119194747020252355269734971489533233798136873466269382250866410884539457181711698185071245317258171051174881577280028413982894568865552845901403116405504190572553696109226106358233424303027069471354871982750037054003
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 95 of the certificate chain of a 2,963-digit prime (220 intermediate primes).

Certified number2,963-digit prime
Certificatedownload
Certificate chainshow step 95 of 220

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009080395441 --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":1100000009080395441},"decimal":true,"detail":2}}'