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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 #1100000009052518424 656 digits created 2026-08-07

Value

27679429336068133032456644590129867231008729394391918215680382048204944662302145781134760937597551439599653164394140666560038626398040022059405762842266786289255852258596169872564494935880840268827277476706828974224157490404961416276063712590247584806443770880350832497550235759362070430003176410595654469680741696014284953646969388053278528949228931488319776833818719070751298121235544651296827391378050162477246315459204413611070278890374776703711120983428472494398663929490871072904377523331717911253821219930323570064177890986798443623317732910589151370006374800776104462800181325360932299012359148188266136439338717072615691632359384630449430420332167
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 77 of the certificate chain of a 1,589-digit prime (123 intermediate primes).

Certified number1,589-digit prime
Certificatedownload
Certificate chainshow step 77 of 123

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009052518424 --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":1100000009052518424},"decimal":true,"detail":2}}'