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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 #1100000009080351720 1,313 digits created 2026-08-13

Value

10075504760265474567488540186640317055838368399284214560628671765349750650417797921164450726200836612759003472758785680557041746852478014163492203063183920827598983758787325877089053835010914966988351681494987680472022013774892909379494689477057626828977554371154722666403974937826994235312034854296540521653960638378975275863750932087307055968062733724061146307832680285463608741109875045971506274752042978277713841042403659057584218958177800865206854150594627739932769623147334084632747931019764178081127278432171541136717827976365294456733583138747881289956882087091003134893229030695511418006741988716925195146327798868937195479857822706369204261831755082544556871335418232146924175644838564922844427908044496251713518856521970217600699556614944123091762398138761333042697088224228516765707826972442293253288173782001347965365544451534567202774256204705482174929091696865083752619086542489550529039079437107400663221929304832844589620785899497049522025204398688303040798404392458357040805730144431893388939455593706893085713394602378601737512038219131773135755577815198341244538684554920986059339855622792258584192666500307267354367727153652018590862648165533307877593366385008279937975640463875389198099313584975095933630908326559642696514334628765690953408272684349974180794000195804360907292966613603740629
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 44 of the certificate chain of a 1,870-digit prime (147 intermediate primes).

Certified number1,870-digit prime
Certificatedownload
Certificate chainshow step 44 of 147

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009080351720 --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":1100000009080351720},"decimal":true,"detail":2}}'