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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 #1100000009067906522 2,178 digits created 2026-08-10

Value

563118118829025379128281834437554077358580018373364137509755974133482315936848040849552291612816965718611171438955916299346603264841146952125068513825266028141315898581461222028365667881237014106930376345442673718430204216786503031902578879629549253337633243491458091322560749278182648131913076356312340685758186963570606271308250833724233540231836503069179587701979174938352053025262990799409188595015836894069815315966409856066207787059028650071886818334441491833828398967992991224272900870927950798826355114011654340035059539109072300435281142195286253605593901665445993539891708506411265758930688912694488138140396234436390232326472035315614417010840018152663059563723774997924124240046246764741843329368562746827288999518940924957430868040111812971398701122662191261948356108699923265695137872396731054189837371682319613555432941384352058882596313756021007245042764169151720875378011446809885257399493525033844489940807066568516604131056301099630539351829114439538384616290206327232775200383169046342118294406494817588584694445118799902750238136046943600909035739739918453579662022429110770220589260725435186064861072921250467118787703707738385002049618610053227684966945316757530515462901757742660770628676414223978926049014471423800647727889392057505913003535263504691979104742498248464333295807137710173753634765810377710580014942610709244820315964193730512374038788663371058940954100073722265053401697821684986490552415993553371324016754506103825821759673035038181730535470330920604233913758591692793120119043608976172079890207215704041937555359380558271306502557238516846246065305929781742824571852263205869531523540273798657643524780298758573652638219635153712217770977804714107638221513652279246828764151850149182095900963662378496366701075658024276640763903377322328394516750021870917267024734999118466663960456449591555135478088784089733209880938520272342602447915620937080752410341642041470396084945292576328848308160748189208861367776913947479561688966002348813654882270509453181194427283873240946882352638142781477389650825412581064538152779255814008529076834330025863092088638531757384321802695073282861899211581514350767340785767572782835566606016799178111017
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 57 of the certificate chain of a 2,927-digit prime (222 intermediate primes).

Certified number2,927-digit prime
Certificatedownload
Certificate chainshow step 57 of 222

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009067906522 --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":1100000009067906522},"decimal":true,"detail":2}}'