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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 #1100000009067906556 2,071 digits created 2026-08-10

Value

9537871470981343215645819493126960848267547779708475957335330500916964356533831855231906252384270499558173003160038223669567079702622679888799722756697096399302555474685724699496315561903433460904773369060668170346246601665650966745494876011281317784214633119142245734651169198682544764031931218054800096240886092998017287131674484845991547680218671385783427058309563675573233050343406810019545069019581600805978269061695848400696479278774168481459501164284543241600437495933676209973662504067190761132430416240279418105458263944256218736945995315672976807760833834058593400070713367396099675417203834442189585107702500510510322541377791745718193422503082294977124075309192484686293768482938646821911324919791238134066353167672190673548842342107028343519807568345360836115116024677048484750825750296266357823211898688009811530803570821203194548368469751631366212531166051651309085193488293930751312389540840735050152853579971858019124250611680859759685602778922799294745448167190078020173044968317937819541858963176573245082541590137936095923602533750011163490122000003353551318301813232790185082089332660175978895634841152804499697435412488079116321475222229537584594324941239456848647840735650510730666738026013741996797702128669443977735242582880442442329157434926950950567844362308425280283713940828359242746531794876289005022309147208563941586536515513531058696367336158783212714639491131491068629113770318243643354708407650034794966578228568184051743280493500330295675802593395567293314482801118878479231851502530685351519626434272176696102193838362131075119688321590142451550667326629529999460324624761444564963798272959210456402559463170018827181464163627134291735477474899902879272268340640288592521253692302725808425642377182486272670292554330875989875958880386888099427926213340701062883400407430749945515071187078673519378245922407700847582042400940874835947167352481059552404294151028745122181432412180159467202594087718226004066519186967941925148557235580343972524838072046707917281817623798214481147637094794604976786848738790925352546175082213610874975353
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 65 of the certificate chain of a 2,927-digit prime (222 intermediate primes).

Certified number2,927-digit prime
Certificatedownload
Certificate chainshow step 65 of 222

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009067906556 --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":1100000009067906556},"decimal":true,"detail":2}}'