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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 #1100000009043271862 1,287 digits created 2026-08-03

Value

770245547579015352430747735496828026897453815995850872454959016884660686666622564906939084367196898550648674162084127704215632550672572366508200844941362112036168533876535065876937649970859565510200624961176141771335483082043868948086554884651748399447394775387761026732660264085438929697809423618732029377305916282847935394035746912849547989879662753652517352264233872734862163932430335394148322482552910285601511527677057688828340282124765240414426231635030530991785845174087706466091231678919177648921223775248244098991606478665364790362092008646576091033554132860377463623453141018326813278382408372771222195665801367811169423264179653393042661542911911868353547177941400143628699449476517993194657877662198826862608919005815111846672831870855793113292522222459887827004684810274614956904580395111509364940626024521948346230257083732430951917249942346747235710408746206223015384010400528071590227166296791997520160258098649212528339851214648934008091626888639679945170036791712202913193721604636468632084630422637442524099177143118445388752334963016024655669276558643484003833535319471770468104346112937673484653993944096843335392353143260485949913959153525844867125123764329726912258606399890883470485599368421441816365753765151726350801822859208111922276538021792074415554712556587
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 9 of the certificate chain of a 1,354-digit prime (118 intermediate primes).

Certified number1,354-digit prime
Certificatedownload
Certificate chainshow step 9 of 118

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009043271862 --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":1100000009043271862},"decimal":true,"detail":2}}'