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 #1100000008676085572 651 digits created 2026-03-10

Value

405354474250522047584213098956721408314194719094200861745417055563981558684490560916127899000631719118381177226867969678823671877137313520642162134656104431928203857709026091419972955915654054468299370963866183739554068638819877401223650831332615228421090967035035878119967321653372540717787864812624911450963131324681525839338833797430808216948520300120381851833829792806689377077904044631278005313620800808944909389495838109172979015285771974193651061833010429708845515221209590535406480124685306566572482084268209373203241739454402346415246170836367356228516520004774506667973566240103337803814538324283316622908772217171617281502144708090685618003
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 64 of the certificate chain of a 1,250-digit prime (141 intermediate primes).

Certified number1,250-digit prime
Certificatedownload
Certificate chainshow step 64 of 141

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008676085572 --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":1100000008676085572},"decimal":true,"detail":2}}'