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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 #1100000009028283765 1,192 digits created 2026-07-31

Value

8510558305263471412758175907604713113119341233036473954178647199801024677291808177971862115586929267026857386797700537387076598015748366513763316341765152619263720135089352654463528755380202107560912084619163986087255665990331744005575527481232598377482309438697576178842181840446524389967952512497253642910766898092877064365001916444587741940437248169359382923324601352404079524847798217594719962839719364061423494941714944044747252580557561527338174126591197148770517138956056507542968659985958217053725461837425806628208537982289217975509000625487714862396885810826299334622990832920152212328493573803652535936386292320930291623616247624396452663333353650791420602143092502177520672412871637803465731103820649650248758413618169629434915247958538253620809737050553471270120548314987317352093983954008238967999030247431782321766596635069755607049085720888676064119196202587611769545849688285992933859012697528796178066669205512958117355016568158770199718502259008597169276144819601744942510855369140535031241384174597656668865746366143405523238847937582687894549038253934315313294607901666901478668539887683687703127692649819779849656580765880359727140443760015133534701985735775231455068293
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 2 of the certificate chain of a 1,201-digit prime (100 intermediate primes).

Certified number1,201-digit prime
Certificatedownload
Certificate chainshow step 2 of 100

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009028283765 --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":1100000009028283765},"decimal":true,"detail":2}}'