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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 #1100000008942579825 1,987 digits created 2026-07-06

Value

7785047419964486991758831179476934043773083712669240973771264540192700533730476601653957345988395248050244127854912978439749183928113773892043996943966519909600896214667671583857907850315349884150342941866590748095802817045036062792724809580381191892400741399304508989783447204609993546525873473473636549496482238998782548177872594190493674939643172584994741120424047229302209834528562842393181422906724619331799006877230703647062352700435195618678663640015466980004940314792487945684916531104689574234733013048937650546165636455474058910789859299483929728731259976821757265002788501076531716020335061824695107491894320390014847688216831952814981727922974902820897122073219856611198751916527936424028456893547448738601634743174552734891176581107926756256348980749618443672487877231534767777688810071466131656475200246035342181271168498197825458837871632626311083888319805450912046008660634856656090026099666865232262116359672512155321001079985822443299631495908691875432526493021269479451169106941910375929920762478675833849379710856705216897247953962526733131648218559654330827893384570069535207491827093383352068010568474131250420118930163581788926825628642276929453750835019398103282916361181826809351607735628639198490936066613680681645614669027825031970391600039126065183940190525843267898020801972201422374743092345386408491233165725356672503463835778987118982477250354864295175532013456981080179666417184411829843356160806727496364267623989009236473510006681837010907267485888509239105563000432824034975614129708879901793973014219147476101493598701540111539692946235120157412609422090955709698124218684244357288538151892109235867773081630556820970843344946629377677318539536070585886230644463275726328504688004148873836528733327740927353196633524934553999484840897857754743641091997905766985578361941916972864407874711241106997721505419228156437315885439403618502883459042809983971748757196461620862767744527897767764918744509280109702495395229030339027957012995667498560528148119
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 63 of the certificate chain of a 2,801-digit prime (206 intermediate primes).

Certified number2,801-digit prime
Certificatedownload
Certificate chainshow step 63 of 206

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008942579825 --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":1100000008942579825},"decimal":true,"detail":2}}'