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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 #1100000006886660721 2,548 digits created 2024-04-06

Value

1304627729370696283930753525426291268896665036897510923153682428750583834462862871555104955659067270661443992209679165661087542027115186199995679184559719052464719997380927160091798170266172010461410996583519646305709738926350948888061937890490248379529194334170466506027117005898324078038735913799076183510195124373479011864480024314949575319003587919819429809245608664464144934019268954376449388117583708016931574457180908254518522674258661979862659854979420346111238947507705162075735978886159102117238596013648966449444512401431026879756752877237056327564777311061695541226276435625353588540582145199537941187801536175284463921062414916279573399926093504776726751489267509153448147267992021585753045367511924980743294017561273161302119511382320138523264367554632191271489994854199203371358037026156896682404938765372385583818717099913883537490716280695983190858633877828168071444899022906707076971339045383581230174143105704707990747453532803302274139580733547289412416161304352965336627500457693223230145590378480161231004940425242470087922645039859372752622727930151960037775007281069864262400989946216563863056264910955487369660098048304774978867096776992752127668466247916010250328162105977356220285985658805879254642938481841424517689867793463072682814159538881606493861289526823315619626839350982233896447174457719620522350762756628561728558196227596217724595749277227027062440682921180105058492990072024439031663158015481762672068777519807760406225110929448734237253044239550267218584459662058495371537986104059430362402880513307067174191089089952574141718693193858653285167901899194635439496690586974154623209600559117835714662925192308414663204263850835839880767225069298640159491731517008996410855282038235229988925763591653387014860509362363614566321615829138758073795134318753766607777154942585037020269237552359366578732467870983192907594492836505552791014805311519192515687737087756058294658085576929978554103921581587834949249473318437912553126560213591767572211326652517340691341859715085606405094373165935894425645532900704318285843426760104880915095702467253138128198103097420324460010094601662188086720991005284554781680197541551284357166765083102965288465264117163670509119966019958357100305930987352961190192324807785663059217311457709315316626444897764843520689067550805594700147877496784083395787932959157859313862566451876947922448795708945489925729065189988539280390191350660408061423432317718686754162003750454488709800156855482724654439200124507618938071075280348246875847493655939710626181744333974966112961614755847
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 42 of the certificate chain of a 2,980-digit prime (295 intermediate primes).

Certified number2,980-digit prime
Certificatedownload
Certificate chainshow step 42 of 295

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000006886660721 --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":1100000006886660721},"decimal":true,"detail":2}}'