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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 #1100000008798800415 2,357 digits created 2026-05-10

Value

66140046503188706963373833967981852135897550590193277860291946610858861939454805438940130196413842695595333288742408002619061495035638963207477314324890338184545107193872880894199110928477297213546584275468715350075328316624264596174788778820665709273059817690745318945181294300028023500493901208257722920315457409324677856178284437674001471862826658863420634314455173635777136111137500264888622376149225240596571864172544577710993474862684626550463832912648175097058020401882115037304439272366206960760322276187044175812003514298440240688162749285295882824931926074698406600889504176929689066597262597767049773707731737144816286022682778941590177500334598238208654856752893848332317500029449491746761230931622067182583495484366880789292327579206947038921365455882711688958168136225289630527116999440290198679040866011079438124396827409302938313888477392263204215909634737173724019090964074773529715074995492032906915506661330724145099230767521976120635167773248969272580240845610336848229459742467721681092015029256716719841593832014770460597116590208979233299360526822633905749628803259931378008989790214165484173706800458135682000665639603210073047692640850787312600468871970201246931466776421057799466986182682762129077065157725601605413484088160897396647270980013391486410545445060610969091728425280308929889112079678105231275995350443976784071263893644153122180184545847116398643159728412415042452561052817384072738846112870003127085062934812420968702031858360490388079579233091872547807190269570968191040076461431924689468653467936468829090847104565158726103413343566299091619847003270243361238854058857524920488132920528387389924512081821335327332217717188741610219859240904418462840992968895799408001224636412754974110075662584927742242752824861940022396429160376945053991133588878434870638023817432129240519661671484159740096669788744169638853618755095916621408221928860473405349263202531607912975540804558237193569238157171584637504484692270624312644012458955944795638024778386202963593075554058608476237931751638567772317458016870978687342663170565480463599313886842590327277749363563425203080681562425270557146341456979056153667583213701227054902987654819677279981434004876660473395371911492175441383845073100693475058902150170623054749082588823321836668460474327438782446754231256448372137918111911122462321573032190315031605179258171611810001
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 97 of the certificate chain of a 3,906-digit prime (235 intermediate primes).

Certified number3,906-digit prime
Certificatedownload
Certificate chainshow step 97 of 235

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008798800415 --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":1100000008798800415},"decimal":true,"detail":2}}'