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 #1100000009066571915 794 digits created 2026-08-10

Value

28886863126513215083721526134428205844803262944717827445875372768681830187361219915087470255161673108036259245749804560512984159435461328531065448539906192890350400158351307080368519259818683470111061922956110610337914376724215619171667509033668622776100909974951287088905963412013284333374335356790336444935892963385676291925093463660394257197220836311196440422526265525145933425243622903487767560324456729051252005257541593433933644408236092616457803659148517381522931031571041857997503453136969280909890286218467859680524346084856073450975731168937215092328058590755758808413043514979625186712802981709246951874123638878515008178718911436099928648966232291531298993058550051407186937028218187776583837400521257830044765477506202788945304505572629632299281789070403111317209881479774266357381
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 80 of the certificate chain of a 1,723-digit prime (136 intermediate primes).

Certified number1,723-digit prime
Certificatedownload
Certificate chainshow step 80 of 136

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009066571915 --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":1100000009066571915},"decimal":true,"detail":2}}'