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 #1100000008676085573 645 digits created 2026-03-10

Value

410378325713911755292503932093408920316711906250519724209185909467684957939586984783851812894081059448145372881685564357690519213347108826901085219918344809080973130775985708462976716883744859032576168417634869815839576737237134400555248179546625011815739246895530968233076645953130767574434086904509921915047138392887251573065534805906445208690070307341251703651142719088868064533497696436696349160841504875415300646611167484672854998552896217580597002451654107287529430747891605100671828233693837796144135430369073113196616110015312408170431629333227702592129780068266789572770235460642838490595196446666261753141189633471528319571864053290923
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 65 of the certificate chain of a 1,250-digit prime (141 intermediate primes).

Certified number1,250-digit prime
Certificatedownload
Certificate chainshow step 65 of 141

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008676085573 --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":1100000008676085573},"decimal":true,"detail":2}}'