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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 #1100000008676371211 2,532 digits created 2026-03-10

Value

547604421968591942426577998942000581192059450111251533579196081858018310329595223203888159808475852611780038755984371206555375095169487904476075974362476820081737488178709332651236311258045898171081657838365981452738630894919618765880851556301438393240026415798324859188416541388253416067242802056515816449653524529899144299979131077877480782506025110854013472711278754386771959115600322144067134526858799042176426763331623372762151317480771043259443223752720801180084241767091917158261964456823499742161351219106857432810018410542272759618061301124912534332430297865552975145886735629736400491222877412382692285540582748431646809473574194506020480893025834053200806808339706326652919170955289675451454444409703827873405271134879105319426375414365645261473167152318815315870350777435098414640329430276998992758042771868456649832897092788225890757970555157671936450120168899844972513870686282529764884632757678434233734326280195691375717978298294934292879875666126208547178548002385989578528932983919926681871583427284731595570088096328439639213990310083183911594349311253709153626841116305788054429561592161205294027626716790368143830891599674781854314767432059569508783417566777173517503803520936059212207746819017290691589830055675901552052909333967998313135527467708682251297666514055797583611653250002639122209971271175611747308697786275415370296772677327508685829894785090253899577145272762668682889406391505051820006231779017080665791790100695517874459372496263895419134740594715416632931915790432337288253179430407390892861161204921079598189848298294298325551863921243607085765229430481434231090787197015193323108012890298703564677320588591345473183275247812522236805277057091643963681743155793419987187693660651535334548373595212416808737347427947403788647603549562809734033658285782873228530146699279173785387954554468546258206771996974008536218643418605076397766259124321212473148344602812104593971401165504465524669259613955127655037075349994773857694850237591294780923126190020974605327666504472799817317677069254872671897123357785211323168851746417423112686762496605228807004262725973939945729953950530152598395507973565563853993218921387411025709491598217427080296874221144061507107073607133205554557186797810297844597731914949179756825264465219276593050445873849360536188933988804909277877684206544115395692517492482323165990856458103902045713193623091203028751035973644027709210319953936233967102603048198938500314401312381058023682396582951027923043234429369464172747478713377144104553207314911546210437999696287833
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 29 of the certificate chain of a 2,921-digit prime (212 intermediate primes).

Certified number2,921-digit prime
Certificatedownload
Certificate chainshow step 29 of 212

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008676371211 --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":1100000008676371211},"decimal":true,"detail":2}}'