Factor Info

ID 21343
Size 479 digits / 1589 bits
Status composite
Value 12221981520429569162748802990064752063474135152059156672309012851678117829063835029551822616233387777397299821742668004981242626661417896874143752087933905859865459211751217519914368183723958455867256984337409808564714073166493946640687120493596910403127450970961059670604493809916527975973927060134222908969493822528952086582137146794210972882523343924428104599344514377806184157911495329680905702378993253412409392720637877157453391252515510667144863664098394071797541473918069

Factorizations

Primary (ID: 6740) 7851027307722624763151 (proven prime)
(ID: 21344) 1556736595274286790771982134949247423469652175197650509276270779349701493620306778270883104070374239114697547843655442981599684480474249307733902803221796084138171480789889970210792822759574926896466649949892023238367641542562315489234682772391809116207064526847343320725308803469153425062172549543800745171183620741072046776131452308395618861159478531931778959480397004906453199044199911074150143961375505076141988442687475489914274850286428906209218588219 (composite)

Primary factorization keeps track of the smallest (known) prime factor. Secondary factorizations are old results kept when a new smaller prime factor is found, which occasionally happens with ECM.