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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 #1100000009075031317 1,246 digits created 2026-08-11

Value

8620792655096364997227796346883708198161522866009805677424367386798847787661638755497249661457956539912155760498596542021327792290466107621378081059914686834145629560270984837115372179446374323048465414333888559652315523222696678343100134765320346940611268707193869284279340049663009934828503073052453268741799176957004549626193817542833469040162647252339808879557216431172252519176518010256631954377929490869253995462529594730318296627198933289402290834100359214064227030342395621128889630393135188594828051334099227417488254333111432288516618241412360765596525161957689040112333322528706578576440906376682941766822778030827514486431814935952317363601719127860651501944354754951761687110521985388458671935252880709852586977551172651111814928480951825231275606834591053898258575617861338153918248117504925081416498796023271940856237536980111909720369269812055145812753949565859327975546587227622532539601640308000166600807756785526873820095262106492373028421474083012608783887450325590785911891898709792477970101695337973305209895262068695495436299430161566956246592735915428942039032920458379356963476920410764701842389632408807909939650786837812855216868423803534879071407976474247405925438735405352319770066588119695165593395735639060367462887
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 122 of the certificate chain of a 2,940-digit prime (205 intermediate primes).

Certified number2,940-digit prime
Certificatedownload
Certificate chainshow step 122 of 205

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009075031317 --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":1100000009075031317},"decimal":true,"detail":2}}'