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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 #1100000009053654620 1,658 digits created 2026-08-07

Value

80885454687075515913331712156476276839877300142338914458497938453484625105376099613491578308506809395687265993383438496416577972317989542767819909591211960865589568383485568915515779930038520700897434186476239469047128966027231690702044608206232279482688297336694694595785298977956771787172179441558640855811470653923878964972416844374489513001255085625772529871912054264359655216965400243185798891693478980864180455717072824236133713646058703522059620202311052974258272934452057547660548397797358408247458768615883974465025335652506932583963167243882131738545503100638584022386858098999540119723709360715164869404965339660386096207054801219288169507376576932254180251435925140224816209400233127647486668397600544992418683588046868096270084750252239135832273768561601041465142574347974061233494128921483256925485468048728757780992707208969698119324879989539406045531519518854101177966085293787789052583143699998864290571064723101532818399444222403055627444540428592300916688270679438963189799920835633741413953358866718049538904709157629861231704740139248019692447083599440194304676503689671900873502210979130542615166546055760452851143993289693932254011105950810944814860385493794166629673872020112442206119389133973356460799263243162923908950054296970632926032678070634530202146784079809762686406747990504461103734246619836590208199744363060935661034002495978261533517769265150766061603994804937484970624931803359527785716219145022138996996800114785462335854715519150429132262218020606059011691951342132013669620895394721046541333282891506578254123171505091893868201259276873354168410153833944698685905314647723918575946375133560026446035786584835112477043
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 47 of the certificate chain of a 2,205-digit prime (169 intermediate primes).

Certified number2,205-digit prime
Certificatedownload
Certificate chainshow step 47 of 169

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009053654620 --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":1100000009053654620},"decimal":true,"detail":2}}'