factordbrpc · fdb
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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 #1100000009079970278 1,280 digits created 2026-08-12

Value

39589686397719897523239114083726614179554137090487118542221555407758220164957808289958531449763725091604196385688076525675679423043610798239549638149543317102414951728182495987312280409702367946679665114596367238814601453748950005406955265339593232213504232188543310437369503128491280315722750710250833055352137215841563110780095266055130317368239335690593127342397363476415224040179767648670322946197044713638605053319293734213217379061433871308142443931858117307278579600926908901033590218052205149863256748296987379209127466750471113347248928400585346198846164746328526577064426497876380561169837873293932218044218669795696157769324388830320522465653262550841749522799961020956150504260847992110182656949075995380550044128349136397644935664857511631167336231651653736278881499519369621703143830660897444741949142218045674297834400623148399403631981338293494799733434919554838904845353699763680402931109453997033550986290357538953740029930890740246645199091948474093652794914877126844441465381771803566691599154137615772439473819721201210761527564628622369921545373061156467783201288417238355802188826732114261325294170263687482431509677474719731250298608909497001542270401719066089746668487508530351906765946702981923158690800386765850104773117031411403649381873266522977007977
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 70 of the certificate chain of a 2,167-digit prime (155 intermediate primes).

Certified number2,167-digit prime
Certificatedownload
Certificate chainshow step 70 of 155

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009079970278 --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":1100000009079970278},"decimal":true,"detail":2}}'