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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 #1100000009053028771 2,547 digits created 2026-08-07

Value

392160966206434975145124595181646910310290189330015517036536464419617228112655781724346714539795217957998929764062578906983655678248606793253504556860572669364224504711671488299634476248870576403247308776929984695953251621327618433501750989610321505919440102012519365133995406647856343528869712994585054544605148790219720758315449725439612632218835115322924042138276112491016414332992356915194355775719200952486815469787095780052707358335868560421771802964458951967826448210175171792422311795470863085823611670654497491519759855787101809924482270993630454870755403923157219902871069424661482100808443457909356277024447685934242779356989891359121064101953746870322522495919254289345110639047087594081653150585524503547069673485043166395548077508374455980022660611212334213988914353652478476166413005972109823439288647702492113741737623349081490786496506025075841825371942363520476029044867777610483196843784218496758707218373705103983307576624053210880789666459889313266102062485007359382157113575079360729429862086436914398516828276383328529325839045359682327366221498198368178558573693154343784462556788528813423407705741175344161054670016830441366976658182483165182312369514028227101931057147491603327723851370790690229101422376811900651403877192078424860949749027271476936588728254551967401803719330021413139902749928411269030102984136261362267291101373158652257191128027544406656552762556152005661591005284542669368065328833330256498738768280542100078890249386210499519110159020731631250063990923651569057553997783396547384801741317948951418373936926248291906321703750989885005004955417538193221326456880182084774535002117743580143352029728958964125257919352878541792604311446480694052776477000091404368004432309744406999721224645537740474107594669064110974514289687277004364235794257542971844686827605444332420729975073648714514798899476664000314974003614805263331949694654267293776148661182015636365264877659448139228476023330591360075869584887249753818597324050474202110089132215606518833849067733670461620128116827652456109783020716100956461540644275483629129527468049096657010975107918830050914900413659371687228822521312259491327477455877661948981802934810616624729889644613994490571438265132467644404840022226322850790530051328576739727960620293112521185105258219841521489383746470689426964167285591921782034764171647450382802012931771421834995978195863913855982910745990942885712760998677098616292044258899168733756048303089177681284751591840262376176870071423862159071458794543860666279862243647211520231016073042062571149781473776479
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 22 of the certificate chain of a 2,848-digit prime (207 intermediate primes).

Certified number2,848-digit prime
Certificatedownload
Certificate chainshow step 22 of 207

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009053028771 --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":1100000009053028771},"decimal":true,"detail":2}}'