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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 #1100000009046904426 1,302 digits created 2026-08-05

Value

128961754938342317151362594240681339216936899052729430153652398136630913031336748777448006621262293057149378274125645745893610191901261709610847543495291376058892819488057006288670029972234715628379154208332145702692601585076025338297100611142415222807974435272651282546710822223754622057902206212102880771719309616120318418015473987802963926322311020237620313428257586890838460431956970252359944301863683228487124602889894059791621628616290783932660297631182628866540268448190668115743268242372069308807260679081016623380387771913372782571136259624295747533076217173757071781916939777855001045212853389327540030289787922703888452982925061962054628507570602773032870233624121688884558485113762641614601808902123224313661152280528744197593045045790945699067660185161080489637609268103270340120820472898306825007089458864454577628525543163676655126138243860748460910319210641145118440107481672995763632549408050244121263767120066705286872307768808112429385397879440631666585426532271571552616116554739572432334841242050778621677585725785933866581854100212935684756326042161543770062351445729880956235919838413930656948163957368091389094720261142544487797586379269080852367680484087390548770621029424725060910079405602472723962005003515800005808422273392959509916994286411920960980834452823861729299250477
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 10 of the certificate chain of a 1,429-digit prime (108 intermediate primes).

Certified number1,429-digit prime
Certificatedownload
Certificate chainshow step 10 of 108

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009046904426 --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":1100000009046904426},"decimal":true,"detail":2}}'