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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 #1100000009131612011 2,384 digits created 2026-09-03

Value

28243629607313484744428049774220399481755700065139114845407866185748244164907048037132969321684292693934161818664677938588529172758693408249839971725874701798046506510497295563472169216549320790609452639755929406912088160330532054323204860643198014489138782455494007360830938358184552628056114702005434168246587958747519235355029604442713669177164527237607168834852655697700701916750542812108060038845713704152532786585453390416617119764519540961259395862842510502063410027468838851117524586528612256052503918279564056562597825201959774386392348972038779922857317577199323653832100111489339680965804069696704717261272221746908251022024951549375919300187624833331362973852083281729979604641399824174980705496438535238444922046204921636752741295064852175109529829157261341348377009332409597566207405964552443038903974721766749049232862239262035418050169587174521602012240290089757454544902802135814409469018604171561984667020872281486490308211462063109922048684265617896830365201014865845666567065854292616824955597410083715642949788546923227712983565781100017551052406895612821971490592903865144713395095704537962938440941090200022238969647239251479937985926067900998449594909649436573547076595176165599710485254641539399236214796824487959280755075241919936400133245476961781440168704305326907283697220856712023428752882114922239432581382664794229967089373636386126686260562235507026049747210628437640811345210536879427591092775242950859534539770914098661275550332138445307176488385435981314516525516488400143430781848810864846877590301837362449136551666653553504077176671638595376514286102922055570850066416865189481410508753902060832702689949621694131535071131328116225978683239420352347046930812055589784748590614818416227044384108404487831946756490717427697648808582467393310590109710032861287876329805071603996562391144490597138817864735945462359649572085923488414606142231843059227393721347112618144968613969645413644461448303064634815413281936982559255925620683246133719056480911410496790224536156667817440573058297428118911478885328920450569895708440973286853640869861537550376009612486735633261445642227029136715527422785030235761124200441477027920022915884525054495548333190215341179249913817779227693802930779838342947695537410656549142831099698994450240635761516094954616442521762040474630017992497274091979604901067887371547750338468507434562420341838294841813788887707429
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 74 of the certificate chain of a 3,162-digit prime (313 intermediate primes).

Certified number3,162-digit prime
Certificatedownload
Certificate chainshow step 74 of 313

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009131612011 --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":1100000009131612011},"decimal":true,"detail":2}}'