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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 #1100000009104084875 1,654 digits created 2026-08-23

Value

8424854633781384936643854730142529113764550390660770767679784912113469669397511574531438065861225257776537417440759520268353375894795230464195472017961487813888772996397759478988118865095043790054697163363179696910671792614463763083091532964693501621775250761285835666174825675529080357428831411027720373128857657149545130030668399571542689203501314576777263145242044897462103538669155992268175654742280008980983761080872785167296316954820763423588975667538099249903069175361950990549075278674496480336742601918555640513516658319228148818901533425713817871187585345619282038806849858276958477499247557582966228062207730975827446937318050393962533178907677069929232244715528908897461438803663996129768780795360407891513049240761040014869402542770827927310176919652915623468001681277955980096026702193734452003765995590865029966830689578474498211789258558154473499814450907865690688351178985097976733047657855675772451378188840597970678874801430598855686978844123605444768127647282006565365840867542350708169780443254083047983360526981718164358393358136717316246914142875656930873880231939428451069059662970429832061881420851425981574927003700731393674887798568181071147912437356970513177595606832758419657508646850581003694625461353514338217161786975858295064875718706054921622450010205185348988537196579784224174763362343584044748110228545178072458490559264210762680604124259345307757844311165523779757016367720943538845275998299075389272668648642764168240204743069726699304867602311668575256554357931541498484459354919870779556506595809998911924556357809570919319195946773222714713403237522494989072331215867897513815940379966424662033989807814495290903
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 103 of the certificate chain of a 2,989-digit prime (221 intermediate primes).

Certified number2,989-digit prime
Certificatedownload
Certificate chainshow step 103 of 221

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009104084875 --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":1100000009104084875},"decimal":true,"detail":2}}'