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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 #1100000004912871972 1,941 digits created 2023-10-25

Value

310784161218545390758789887163825426618424577778464342064162235038456048460761070933957727532337051957402256337754509894843470955446833872294622626667847894341667152296782176393514442679971660754943039208173452849162141624610582548480136817144996373846608133643134768215386037643931773863663536192459551645290389317224849582768996178608286359463772577202173587955960750165350598787580389138205715717352713442258330577356077025900626179034049850405663110562772665224588435617001805691173340573321413997036791883958070562582320080536501491324853114090809483498642201441065427984687881739734172957721801968206514663442998445646961024506400397715799112278379326879902155395963859234424257300319034560887928434799200252603889018605497625007625739516985111419463574511759367252784898610397095340386646426449328114311039383996211223852886596160384288643191705496814228198137192636526399858878083841987252350632579247588819066341286464570039138754053134947390227147425952269029521383744565948879494742152608557357057567706934042139029594527020459769218916164774638139567457067210677580911027119696740844193691759738700180652838529978941052415042979062076789741974415803500384796465570636658148202415340312380035635402219131873914600975556279131894913719863722869603659411378461734072117657747686350630521877088925339268617686854344704462447103703919372545901385213276148132413499313738851800015185030051301820558055808008644122808983500111962052511040263104821509384607570077805231351986794317749202012179301295796965075556505631166044608949992763855789086874941978057145960053815444779837187970160268347547795642941378944009500504735875576600530223215786114506646905445630160380849174218251461331984262089442620653495246650587413100474922679291750886445176108657423753613232033819671828816657267161167986040153802491735932901286666346225482143619429597791862783479133394707774351295711582916008366264590732469535513737164220448401640559905645884439
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 10 of the certificate chain of a 2,000-digit prime (266 intermediate primes).

Certified number2,000-digit prime
Certificatedownload
Certificate chainshow step 10 of 266

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000004912871972 --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":1100000004912871972},"decimal":true,"detail":2}}'