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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 #1100000008680031224 1,735 digits created 2026-03-12

Value

1115558311896678487249965207553985100394751981480788463251742714028650868114194647237404725096854716574796008350411985247745422412562143530177400733816123948085517296508671791759421744936305396929435678024017449615854638574212534604850647228438872732252704052451180287325411174791927937314373036228417558101621731691028106206178261375650852142448118185915109559754421096562573488260516032356612721974319496572129418946964162030923679068108473722013460859919585620397384241144609778796264139832667842678719158658835859130979421000135667716076657746635516382701274941088642495152322291209203990841327938201920280813180541019937796077210407974646552532157892362226344004338257372347602950435396599500263399957245577323352608759931200806155604690124922429360967972513319773502155727540941402659345404176395507308344672462829051241076318985039881584125130419919695219138936504753891029136871449808865319610762412785494996048492405739721904265634707035450776395592500035601138617941018527044218484430304116871834001173651838109140753487916740206624108884174088348276126329295109737933251606488555087025887979014415525782904524627127190815889021104454070962310453203055744146197945337709441443297484084745762805938770364026073022838965550872858071169940323180649851138469926799093257786922474918851585824018870918663654157314755615044992441121499508460135660668409947241090212449546892169068681050532144585002901974774091126208465524633212957364022732958372236281916059726948290098988443994320787683890829774927011741849142653858961332354781938696607319572066135998365804917489029784515308755038250956873161187303158825840482299414157031522720249907088646266903309876496441701560009564035286903304754465178952750423767591603096120347821510267
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 25 of the certificate chain of a 1,975-digit prime (206 intermediate primes).

Certified number1,975-digit prime
Certificatedownload
Certificate chainshow step 25 of 206

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008680031224 --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":1100000008680031224},"decimal":true,"detail":2}}'