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 #1100000009028208688 952 digits created 2026-07-31

Value

4038253825874474359410810469218869767978401169804981545841284629191673793477832359972762112863600684548569801644267708273166736071260223388075119446707955251566528931466287384966065971623630569786205812584998717918752418930842333450428904112931421619535816525207806734527223848556322962158718256083639584014833053866650537419981231730449880684194282669480240500123527209715439614586325036066256480200140343941370495025902158708768478907305085066320969853887213992128168626674290582641737502087712523414970543129766587508058791737634363256399800229354762965257309249545028145443757191568976804185546794740184369398061586700012390554579662976661430949223315362510467583963075226216105032365622005449636600477859711331608108021433703830699636729766450269587948833768002548455946172579752381267247934674864790751190392338441893575446482646052008258683130081605060358718220754601160420869220335760662066594256913219158485760472974905404673316357910828420087
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 21 of the certificate chain of a 1,199-digit prime (103 intermediate primes).

Certified number1,199-digit prime
Certificatedownload
Certificate chainshow step 21 of 103

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009028208688 --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":1100000009028208688},"decimal":true,"detail":2}}'