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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 #1100000004866881203 1,947 digits created 2023-10-24

Value

247492494804327392089898117721416983857997421876124535816766316157976483529602961235532272594781731453971810654148717129159159439026953917605151510449462083059487463776183599680958586076866377734246720418700847569993740835985699602724703336499552044541445594666078940220731173804849654650119802419356876998762895035091124193496031825695896025548586192197853329217325175452915162867105333656535699835426759627240404966439671899033389501887555883466488598619504692021383724096796918731018959926339154661850352767803686655493867094703376119918455146021963335036704082688205062148950893991471368113594049192369385000768996191061669949603654711617834746776923065920731597304371805148913112152799929979249177973233048767435144502180536796904642430595540646001248751919347790740342744759317056200318622198956662065867205783395667897098180898387448185964681851076295923473495606782319691561946935155049055019411630634522371009494437480982414243474075993056785841763450003602084393645690466381773593357154362251972991771443231334803672049182374994226032294692201852493627479416689161712911698116149995523036343228501169265435191065588161055509599644324767430939486142756413970477581520320117617803332785869480956930804324745372119035657562424462311832717962832285863812751295327612374334364353188501770330805284243763604486007784185430627551103962626984686525402157375329388281567730123550290567662609946800510408610235614397521285876899133886284715936378104659143902554782873827288839215275884521898201744990591548671676334804553837946078448559773804891082005491729947024176885323226904616162051403450780938130485965869042608374424519685240263248218040938722055071659558615098521980248810576000510345269308868706562269195126879331455916074068425444464830233110691120840957486279050038871557393762875561150537086526731540345852787793513228714244097952467194470252215490974628113219186709190546680728797555485303470363647348964493125675713246349820887514077
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 78 of the certificate chain of a 2,749-digit prime (301 intermediate primes).

Certified number2,749-digit prime
Certificatedownload
Certificate chainshow step 78 of 301

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000004866881203 --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":1100000004866881203},"decimal":true,"detail":2}}'