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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 #1100000009065701620 1,264 digits created 2026-08-10

Value

2421530706485105416308490711498125090419652106781835569636115818866420486871377626432222173422598508897103870311908238998486573246963196756019531377838528800296836993101525405676633444217597767324190135263734566744181726068116750039253256896742028528667272914397414393785331630663426979715947226358677328818965214798229079303759952430619514599972813199096774785773481168166268175367278711610267619684955349886714825282016945818721945785377780381597701585694637828342131792548669041871348989133419751945136280216802508610745296358522960736539712499044287358577034390619174077689623529945181680569956969836262625200890746494393524206227038799278879234637265114825047622259965013911519533211016886585810446785566807665913767999056869820540906306522236445410671602193928459636112248848337248123105139441723003268640831125941624980212111218378381318738475238899680129423848010940946264212405693810572382195003969569537430857548150873465223355344347682932644296082056928508569996985369895017621421988539665505436581373163129804912640607923820453115745627502029084298510718195242105322704189396923162843935368916643070065677221659302092503350656074506659920965197469316634287300004905945422705636241131687126931865671368993400706088684562980668003014208565261008882553837
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 34 of the certificate chain of a 1,739-digit prime (115 intermediate primes).

Certified number1,739-digit prime
Certificatedownload
Certificate chainshow step 34 of 115

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009065701620 --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":1100000009065701620},"decimal":true,"detail":2}}'