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 #1100000008941953820 657 digits created 2026-07-06

Value

976121671107835711906412034434661123238266038029273355633484059584029374433200488607555238966202272433249350897863260754658572844160030865410490023611479979208793665607599488822594096612310835705816378444734972143086288315471862093471714218329805130034280630429355149522996962671092684301322156395927715467665657059211117953543560760763194512142122601504340636590255136212570420237951425971296745607869463136847527606577221150321747022194264893561567071299369472121110004392796398425196697671760494987209789509325148640286498888422111719333383358576113961472325225483445440438640097625995372415827046981112171473251448330908453107322691941287922296952648037
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 80 of the certificate chain of a 1,547-digit prime (126 intermediate primes).

Certified number1,547-digit prime
Certificatedownload
Certificate chainshow step 80 of 126

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008941953820 --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":1100000008941953820},"decimal":true,"detail":2}}'