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 #1100000009043221509 1,277 digits created 2026-08-03

Value

26619542386573423351679321958457441459923089409367722776713619902472943117340111831527282883780041206978385801992985826265338127831256850600202570913245173079798489376699315668592611303802025086007251366743721394089778861279295603081015066460330599636838903486612315079825671996093610561212088680668880172561769570012048434113572750624742939168870538625549113198400853138826477399147488378475145405956937427650793052121734616670643234300660139255821430724868569560432864293095742625595094276101092759947884362136701855326769044798808680927813274351502805348391015869615806585466436837511672463436675747460447276203190716142382676878776596633650180560841076644394517637574773377889167726588853783159234118364374465963778937894648647998355161242163480088001771987551790872701907398074032670277880751645163558278356726851961019545737629332556325100528682569759822940884908243246803057441905532305584033472970593130719389391845319626041468220940685927095494487336767331514758274044636096159602969086516249314281520020354612051850813368789235698151635137466419093774312374776402495967847136847500320657193351426256144869484682771479541709709011565892375197903749677367585357131176646434125183790681120806895582246186001481258638166133850525288376489534588373083161952662989851162059
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 7 of the certificate chain of a 1,351-digit prime (104 intermediate primes).

Certified number1,351-digit prime
Certificatedownload
Certificate chainshow step 7 of 104

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009043221509 --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":1100000009043221509},"decimal":true,"detail":2}}'