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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 #1100000009054143285 1,923 digits created 2026-08-07

Value

217847638440638420160111676188114165001384126706777551715822063081824226630377009548682746078286633138237926796075058522771678402123965850240084816262699675366458637221701076726021086608486581072435583800516410715160310439909955413692130004900924159218129180398545505033633086055337378315795867807524692341065259291563305030175286289501199899423838351882610594410228798419556962048506653996226787381947808331892125971243105311364924735532760066705431375803407971950196514580708307792041254371117837346051985783201633438439192957937477043993790555795047911992834814643157027053923318546929784960522930301670117134918349922168129878204734277771640277013874226123976170128087790193961704518005870654560412198423805121225997147609348251940506455070931927623230249936221846271029526352246992286759104808632005375034794461893338658128558055355362980358726382101221574757979124071931252112379789349070462139544153641746437478463173555059901321443454406963772602771921628262773877887809429582963223158875794568763669741276002634697094316906831537370822351605697766818910312147394633203820333241402329020564736269486598012554583919349270446351000106038990377890030055944070183264584113108664466261584463157917166721046623578827914668869045815915610483396284969031903680955188919557725144039105080402619559086407240605622685474673363023454753079651839427598512146715877772971795516502774473576838329878373729730218680524540447046426191584054663057820790370644116763062797270055494621446155962402177208531319523511948773052025710622250701511969811323260591123009982909108695033025231048298935926913146841861859744511707182212687468262173506006361997540131708697918983629110460296241989115652494137346956210607775424181737608240525567152063343353417829249402265158298772054774568296085219372721744389092192878439344465292792494338207153024873234585866401932385145195329814895577662596646850487295722922551580351584155612393720594950813
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 37 of the certificate chain of a 2,413-digit prime (180 intermediate primes).

Certified number2,413-digit prime
Certificatedownload
Certificate chainshow step 37 of 180

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009054143285 --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":1100000009054143285},"decimal":true,"detail":2}}'