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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 #1100000009056642301 2,399 digits created 2026-08-08

Value

66038505666230504404276373331540770651455537354361508956057040728076614207642275953772302325394643488050672140233207424157536840397283853061128006067842480721050031052612022044349547304066287418145024297650803217756660454174584307359353810321821138888077012363688847516309792621846692634122830395964575174910560876383158940272379747840631930033699365317234879966593103232818691611077150333669155326446636118624206107183598010391727161650204926076934662654749636702937678830452494597468415877610036621855436661446980567613946374069298838605500011269619707673775672135652504286762854922171345264662951118230023936987371633671281180033710309094078654655537797151021598754743145046347873081029182543677495424235462531500033307039619584335975468189557432263943966581056568955314172367291047167438428186290683830015199881644983644396460436564134429162783247554180272073528237805478780456929937814110716466922130635685029552979346514970089816722922903187672482971542101936058759725700651039668320750014795111596736485755105043079602580762512483129278012100644762027248414767994372161032770633796117605082080616028162671301045753057579643026668855525049710976447066883994303134501733292690768461167774163077434534088185578100415917995781917063732248492299925443264124990553208425592371075925373321203226160400776942829772572076908440777809081623726462283472313530940495928808154717606734501969134615487594213124621434235174027863675333285087751937090594451296620027104762406490309695801004398584768113463219181705245076361715536196116122198955439681306975837286596270251470193412504811976562856803039327959078235205994389473024589147841303673619069505352182441375489672239417981103985116255279421905629146622791306722890056269428145652426687558542371420496444603238539122830934337531193702802609674451411685451254019225639027680296259047280697457588236871425610502346655858547816941515606555349839532905822446626042772029789788772972419014649893495490136712375830839220995938972875937898603781727493011496965751577973048046203537039439599312403100365134598446241255662125400675119261568474191702889627963465661190203313465271262057573251783983276945482181619198279550605714729529077486860281208988960597247093483968974733151397271996390771804173340867982480481289743390504505393272167558616424641293781508165836895732027757236971832266615243635270813088081227181057355797777192311487006195474729221670246921
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 13 of the certificate chain of a 2,536-digit prime (201 intermediate primes).

Certified number2,536-digit prime
Certificatedownload
Certificate chainshow step 13 of 201

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009056642301 --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":1100000009056642301},"decimal":true,"detail":2}}'