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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 #1100000009061156893 2,276 digits created 2026-08-09

Value

29287257423240165476355101211201913612732405319505958723529773464320882916359474924707011500895440026529328268618326746158277788585195891793028434129592360091179875186915475618587205071235207313704464132257606940557350002430355314006956068115565388052678001932057349975624959901405525205980318838768000356755705178246843995138715537624978649956547000009418507672514857940938740240006252818028166315370568461374070217104497641504541562568406505294186986206875132105244901217198092777256328519277528389328983039075998784642475454288774806055256127677233966688112561534232281897491987443901572687437124128305086395923198361563697425349192807576549236443412678458336716229737982532869164524095050614050544449580631291745116095139025398536385429510151603238727631628005976719437610839580974577123092383845559090602930558943415281229650182578555009178686857064838506174362215038142380215968970736085240147884422212681563291929736717021107456866295970207064377367138614505156911388572853421667599559787615774897180861190848010672978467260615761793993352135839091292079271699626635081288749099510999655196908599895425784247794669187598235739539330595101175516320820838750471218253398181700019133419146943636097784637453634344349689675245140538438508645992859883028537889344691665417329218819898761115846213657686210709206785701963920650659414753376241285366764219521545295513948805554934753017431909690811731066225315321864393960490213176335851562834091859982209066509152396918464984487614781145263027659074180525730725087759743443550556250539739841762011699415428941075970578920136485674635545555136081061934061993209326157124844066355404890894242396525609975589634253149732177456966270013386598315387751166337797907349326559797086058478933582736592353526978584679333949723137655332999683657143166392546849456499103134891193469579484141645061880280818338065743994550524345337686819773120670518762564015768291989825154730500762670673669329234933762564151356546020106824150932914667884597847853045909157541147442358050045381594948784970982752914012706343520811067686786207003509876726076024962019073657572126627880152083729076065913359578827941636139258107878005842892308145501516299293566664885939127056574789040750710624165991097276700203367922649653342174708095785455928893592322107
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 9 of the certificate chain of a 2,371-digit prime (183 intermediate primes).

Certified number2,371-digit prime
Certificatedownload
Certificate chainshow step 9 of 183

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009061156893 --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":1100000009061156893},"decimal":true,"detail":2}}'