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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 #1100000009075279044 2,014 digits created 2026-08-11

Value

1311273225083084457713546311474639160528595587194033850206733965145516793240608041459331926634191056936291748989367535679693202291867839683523537659758265724468976191614788788829566137079419879544646297728419169222231720404408608894462854763488037837561172258041460678029864135682699588660158402363539732062160016479425198728385779355461063357313068440544125970089705716671096748364676051503283823545534688224710238116260671869748867305751786797289640483599398678937023533680964113328364145403119795564482326161115870626701765338576390297328183350781743387393802602302205862556424948610771764032150894780186549286511175527837001736856633534757358401241336861926328397682254418222377478691051875690993775433354791705154058041409384093591976884906205468085825391298926319488626779026715874251750057713837133935825602605837115604081732936855882127594574247239541161850622556378978811794671406669410793987419471463553220312874495277106013994694442885194233215229632175485186959002515832309679198763141243912021378412776926678702484130220168980324520743796738045245884169624633927534341537285791294664574477359633796639928398442447293843405866709641933533504795986149640366838937878125849101205856182840779490817981502297376466272534158158987757699983870890683093253400605617449075886284613005919512883967976581294806642998621680538447762265407595992345336996494375849940104634651810615347343548758587023728052727478398217595721390399520625180192285932616644016395744753878123502160242346750579735049138059218726262677993500368928965649499226255964771322364007473422197780235687149418099962151849119849851255410926470550495191987721745799187976299258471782034884477762373128921419138797800755701276712493240627484192510883253633165710036419321614266371147373509618419019060551077514659291626303462943332898520812634780352552403980999846082782672467982838083986260981963101601271017421793607568899771115167960809994824484232827195173027863799749109457744312609118378647810324498805773985776122828099226151873682322246277
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 51 of the certificate chain of a 2,656-digit prime (204 intermediate primes).

Certified number2,656-digit prime
Certificatedownload
Certificate chainshow step 51 of 204

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009075279044 --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":1100000009075279044},"decimal":true,"detail":2}}'