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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 #1100000009079526422 1,640 digits created 2026-08-12

Value

18858876464566560933292449872930972500782552600132251280497268453572821947400775873315012489223367120503866089874345133622168255614234521280327572278020972975389317322971238928215526003491601982161761553329464734714299550608025786964397507895762429522248558419364128795711130476789765815547721897991876861689394443791085170509556379037435757237759183255453323373822428697866721728628480623752301073228767126004886542221142615174267485418223668890423954628642145000680052097485977960839233652992909784734966499241200461110427823802366920037642665840558280876992738042473742052751642920994897727177920060858950186334461996232035711035495020592462229922897317162595749937326671407530503381275804838078880557253667617276919260699224451791544365377508224092927920223050847260979743592015427270786101138777939335631028543440583647843413045796329409957185466582808342771765130337394454428147339693784583476545053362887004070905696689453226488348086537478340935753071157062392986126124599456727519189227565206086114117464537222803764426754832864576273078113094682849523590940554677333923587520405048299401269847538502099700172767486777316650973086466169331941454086516257004768319961585998199844887630387098247503354835209560598852306176793230302460978228190171171300912546363578277748030913511206216969369203325926209221928492373032222236239203783433662628534104319328824626742338897614443738322883205912103413015045633814113116279190056150643368202455130059717699752642610162058440554195499063718989114504520953457662284363099645154065937498594747474878383199656323323130714106915016474374665762448449885362735950930238626768476463123290138619541
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 20 of the certificate chain of a 1,851-digit prime (158 intermediate primes).

Certified number1,851-digit prime
Certificatedownload
Certificate chainshow step 20 of 158

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009079526422 --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":1100000009079526422},"decimal":true,"detail":2}}'