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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 #1100000004896961048 1,820 digits created 2023-10-25

Value

71210061963865433536854701213357486697077401326665670939470466604763903962105440340261711408558004285412458277577299900621148497347187512259220508371281922235726605181840595723570919711108756169590533292146170417396554666422546732584560792710108642757880101325508896379169140422583491260412453724781535677001108825149051467670993291532812875370975167992025632623349813088577851906644579981035991131887300616339028963747718630213103256905345798988113981483983133133050684774250829281789318898348058334639487108448626448030882311500742142069372276963507490383165821856145656283726075923987030979929423912082169865363816943927945956635155922408287613450562836726296603471375026511346738547122959940074549470520239300538065022425382835522137096538957638491827358646695137161680766896819660317616321180940494143456126809046982654512162624088560205256432421072800909498663994684278036611443675794335703516184802814846289185286088017805707368962741731926144714753688563615360385603391816842272654648732291125335623317883096210404650884743228787412685811074917189377350388790474621836765898998648457813856474064000522509195579843725104284106050854667547088347757393592024859068573136006139342355818240710012115812027284728620785083728265097959896516256377802195728055586719903116916719100175557439543728435433798106202874864449779252514371533851049435672838479518849944038800152905789242330852209890936837166983053456674653374682898419475199831121099702683210271272764303536306490652524907549997475980932387837004692252333208178891653787734566104822954674986094163547201649181465204690275347512304848276513501372079585904268816395938507895706039818359699225711572537665331679203125317224675260081194825753663076266416979878870315568434924003009089409398347708537180653118656415594601132151483173364064674882786412124692619414381
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 34 of the certificate chain of a 2,131-digit prime (246 intermediate primes).

Certified number2,131-digit prime
Certificatedownload
Certificate chainshow step 34 of 246

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000004896961048 --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":1100000004896961048},"decimal":true,"detail":2}}'