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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 #1100000009123228152 2,274 digits created 2026-08-30

Value

241229832816173822077701944524408346759521226575181403097133559995882561764052900438482041396118312385091006963645672089339078517137369066458938852365523876852282612653897665502209708188990351148541665479572614396073629409054269008038342580050309682750245609730487199383662961623555658109128134110014155989964974870779638318392739020652560585141883678475472219132054834771426815497422423248371076726504293152839054971055096776423304260128099488985218457603482404583850109552084411624455581000151324577098600748108478495661230738514660207354737805919179956542357069466815819674898906459751334994540870926656438211395828701195016391274997961565612938112966638057744422054328931057010705494711053716145329554168258507904314705120921448716587405116425123484816973563519006733813390273668249312052335480542836198216145515595968590764232799156839971187163050981940241588373104218931955077557921366279230116883669800600663776543428966809280350200988854420842819705474346226762614172054627392657296667518565589727914406992222190740541038193800675486249945693808032222736087563915466150987015534248339556942602214380342588486279727327871859506383362967560107153465943677596935354523142322710936601238290478841284130740667531087917738263364217636664771199874807179880733822220444285989169428071646565559974829187154084814795123341263467707699207553930362323556937895195258219068542486177191020135601435561860110074078494533248032312368265989938657045172678116956987108473930909516297101265886796471270201235884886895430917513285585137057529192486457825356448363270490263408556973245439971450244788360172338859299172662268692973205134312749740398304838843483985007411974155740754908919057229605109819612873384520802782771644333224277595470667141064802518605672363766773559740518366126179652959601924050921592623709893363396044588816381636155948329393581463407556152308312090639849565841619240995578665931918966585865563211485563353726599865434828629339189894823154945340569385085700645529576496833676554241503273020973947389820081851732561880149944898097622713522033318387434481380637604901177782606988276241417446998394098733674848289140438564830684120270930663603126939885631872821720246161533512514812521131555718459733617358454571185164969343651548575629690656144371302624216652451
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 76 of the certificate chain of a 3,079-digit prime (311 intermediate primes).

Certified number3,079-digit prime
Certificatedownload
Certificate chainshow step 76 of 311

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009123228152 --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":1100000009123228152},"decimal":true,"detail":2}}'