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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 #1100000004942350156 1,239 digits created 2023-10-25

Value

227279317460406290376506778426893428462762755150427078811323834341624894324685047440965458674511888186692160224715253363104396712811769670946474178837374570338435631108269365282561596753589182766918448660937529869074192271783326384833387584999215201958927005754545754847131370280582920176444704876211485036221167878253520015831876613782762228087827929866784424028561312315723032568773986190012564041558453339475600893242578113313651550424830299367875651663824413181403826985251563662910362751071395558037376821047652202906866774716030224736447979075321399386962373317465377903674069813742571838798661287091276649859813616869496068237255708049525195678426273530535815575066820757833285347856563578946538849014037155637697338423682165450646854334479857029078185574244012514136454456964320938772552857283685378568574277193969509470216383453196372176441431055126794995174225374271619228365101345336164809548638841237941543899968940805458247791437161097719369392929833372200070723477340033580022046272472334955489982793011733596385066030389847033130562121401166819286844018746376624317792208071885110027226384795436991297075774950474409455377210900930245042041899004342778432181534891235317902511150666291391291494918533425561316607634314242097
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 37 of the certificate chain of a 1,624-digit prime (189 intermediate primes).

Certified number1,624-digit prime
Certificatedownload
Certificate chainshow step 37 of 189

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000004942350156 --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":1100000004942350156},"decimal":true,"detail":2}}'