factordbrpc · fdb
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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 #1100000009080377741 845 digits created 2026-08-13

Value

20307857435259931124517643604057625491500497087678594431512116428131355870114135021421081721833703391520782378877583591293752840660675519696587289560700844011346012872707995401787750479361026348241483337580799495941741007409375468565883881142393550369765348970342978559262981319168525406280521721624112131896445298822579245543049583447430425815042814273923134003606811039756818079156617182508522221661984867751136584289036059653248609548079637910460677422665954531092295606530749810369565415834092490046061132294013451716807914548906083100171747077483590478185226556839494366340809356465464753703591938218120496051687845049782530840312009504278408170954861494622261069749848293862101103974986674719709613666640668594257703842382128433453578308435760047135302642077664924898740195415794151793612099535623156329345080479725797809053304044112158549
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 86 of the certificate chain of a 1,871-digit prime (148 intermediate primes).

Certified number1,871-digit prime
Certificatedownload
Certificate chainshow step 86 of 148

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009080377741 --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":1100000009080377741},"decimal":true,"detail":2}}'