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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 #1100000009042724720 1,050 digits created 2026-08-03

Value

270567864407500207508022610557137833539635260524146439367460902868400882644931011938512018861776497678300464347137305959157098815052478629116170832479734506723048517075998546486956001804381966127871928022892965228930906349730971875063371815191011150708940034059074655211229836575476771031069089346780885896814380739793361350727353478368919394184944431358906053219943436980468272038062358639590936022444054564232865153286625011017588376050604825459940356750618480447848876589051691150539105708833000910908100810320507529924230373232194121285993040799576428293884884264638070891221673419813498246249892846833291552843164819240057800976659827501117805421566598116605327460232561184621397863110097076530237745961558374721970517536225812084738822982603314611181597448243074250347541640384753751452321409165446973610041007471905493981012076505316330575211876728319467791598469706658878393765229535536182693274698752089605616637269494886393120519410697928031363741601903184310391265218432888601290233238785620266240684337813981295571524756467560921635018857
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 24 of the certificate chain of a 1,332-digit prime (107 intermediate primes).

Certified number1,332-digit prime
Certificatedownload
Certificate chainshow step 24 of 107

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009042724720 --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":1100000009042724720},"decimal":true,"detail":2}}'