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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 #1100000009041244671 1,258 digits created 2026-08-03

Value

2341611369924785213165287578602686320364653720031822090391029272694497908726268846092276602008457651343474923600818615099318563963069552949979132219716889573286742145767479463733374033093864853738781624768385068095013862061307971664238921837018484128443248624814812689275101266939267935439753381361937494613881426125746667607996449940372430724437254394789812966295878551949233444902240145478682813212059787212969443546824796214651377715162180054982106680632417936016129912545209505103214552374417974976564480357141901612701291801911681161176889673526782911267982392533879075486878586013596195390884613691209775051633647166630174562491732154040304114579040463630727756869276979995513270037223233234312870870675144028454209864797601129344945683418078529458480860779624109508787053982258935209380018668950802678963487539534146360349163357532234294951619014971438684201985449651164904351812980307866158916224862475108294440942498322957287909163048211153430525706291045301582067167617704374145801966296003525789147978503198031751841552787699516484458395607999744135498924170203861962533703912878295295136359989535341826996061296160535155543030988783141984154336518394489849574257530731113448260761479433880168694409815776111524976137345321295951259012255610513677
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 5 of the certificate chain of a 1,301-digit prime (110 intermediate primes).

Certified number1,301-digit prime
Certificatedownload
Certificate chainshow step 5 of 110

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009041244671 --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":1100000009041244671},"decimal":true,"detail":2}}'