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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 #1100000004871912387 2,428 digits created 2023-10-25

Value

1799264757949230943466840229641960545600597484326301412972959335805685937015120295585392544988814566871683950268527558261292025034323982249605109781049175323816196087065898121032901221527155098594095588777256245578109178504187751470662188035843349013609916910809351535118340101606504018367093085498022202003819824876486464458561992314015149263903490485137754755721362757933647682314309469636928326034717246489557017750089180253272313033444539804489757838090679958825915266631404732161419209226562053837521277946817851629326251400438296859020207940885755676562060521601611135182294773117691225404841732438748577196557696722123039680489197331307344205871323260249559155328712628465687347309450249900644104347085383617685711357022754234996062949330700073126348283793016707384528638752983461664695904036182564895872657966207581419219142650873594089264269318782721461340026912029813457571040557678478358337401463021346370894421931085263918852902044252265192750616560616033834282658274692352418203616953423043564026301136347117032049234514892484134690914176595365352507042651098526987780479017514435707309521756158601893283111319735010239091078066186923423416834065948283878881659181859486787519840459424512836724780950584282181672710059395431513071700545509835420066852184432510120065412555454842698216345378402795022403885700782025337475244724381111534429508193039413829824058977794272722222554902550475900605637890141113385992988566370481615013555160258045031069913665319315174797376628765709878966288666520139261781873139344896772610886431221853090933076502930111043864338798775568184804880251384603931127326618959399873301363466700320563950708760973385011460443550077530669337030374953273535993012687292077081334157899352499195521694926326759812458245861504146007089156937508407882793818255651672615364534748820248979572375251141828183015072963654555789097656257183943834220639245501157206769386943626335385711344678955715335731981553279983782283254123396323793781551204334707280438373464712700662918912230025958411068774813316418121586710213121691183628431205623222678558104233831940531592695556486168483635240760180221192385140904334109445256560144095775898868367881401916690499967332005757707469108286694615006563671329108260458740700232582871804509269783839437371468473848599537582076532947658137866497657958812997018772302912886566045898369058319437452371754122113370608660281870201048384314589036851177316365759422083567723
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 20 of the certificate chain of a 2,588-digit prime (350 intermediate primes).

Certified number2,588-digit prime
Certificatedownload
Certificate chainshow step 20 of 350

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000004871912387 --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":1100000004871912387},"decimal":true,"detail":2}}'