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 #1100000009071048576 601 digits created 2026-08-10

Value

3047939892721582360417237378292773871309398517437140467223274043466224776122010956876141970618658032524475555587524508625760707596014263359442374833139179182491411532651396758430498379389526595444722266251398210898054248541744979414630651713607317199936244128532524877845169388319083072462888893498272931610388978358629039499672817800516829031625482141932084957382021842173225542860006291430746885512631118551578848595906870433443515088648434972578415372238111651221595976958565858664512787297877444028940840362569928122877015467664555338946558325310065622385675825141776572641480831233122967667726629
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 159 of the certificate chain of a 2,643-digit prime (201 intermediate primes).

Certified number2,643-digit prime
Certificatedownload
Certificate chainshow step 159 of 201

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009071048576 --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":1100000009071048576},"decimal":true,"detail":2}}'