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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 #1100000004895988717 2,105 digits created 2023-10-25

Value

21536696364344886789371078505220232089715199695609114374904788213709791236916782623798925499358610950571066959598614797504571586510995615694833553930038369656516031975725348546772747850728706144917764262184723791779553271351289998526592432247631387087059608450704325967834280821205377637518456366196320534342026251533181630373354849372256093909843648142314541522465519285168003899541422053192221237850918713474297365834292630551041252621815543602721290227913158977942546181820845264696958683390567608467717442216168156890347573578334113698986099476563983705562348134199148174366273988604968605170617948154655967058457251706815809084378124856896449371305342317983492776668579242880994413119138190272705482784437762753632153012891687193924072595808017566484295359804881094539138967446023847424819972677823790056800486040935101223625838927841304095197079596282764223459051789939008558448679382393034948825038381585480657704232986036056851815281678766089492072654145969306591456141322256058027309250304072812738257540481287932881178405637238979872452380075424476997792826019123496569392805908336642607922180446720234900866598630488653536402496403787102162000665420186263560195350186349624611347770284684210040214121785958161900435014372861426092485929520345342652940921468602847831756181615386137051175338749402687997967943423580848312731812108952970778426815574110493173594694280678109054694045246240758389989676124478904862465389023207633435250303569456229064805671695435449338675156210805235853794575298108471407447012491032125461619788692590949121373456536644814707932269634734683512847320127758728006359177481082781358022348522695119651860207707439187000760547090228720705714902685225620275678818847205116140224290932194444388397068894130025461386876644407290592440296022722630707355574221162811797417482656401068384601647809827933715126653093062705286270359337236456858414956817298398815975937464919932439192015860535921535931799020885043199633174404862423665393278034667310536160249912968459999759646895149673656431914233988357482111446652157931900709307711783715880747511222390696828289958044479298949
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 5 of the certificate chain of a 2,157-digit prime (172 intermediate primes).

Certified number2,157-digit prime
Certificatedownload
Certificate chainshow step 5 of 172

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000004895988717 --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":1100000004895988717},"decimal":true,"detail":2}}'