Factor Info

ID 15351
Size 400 digits / 1327 bits
Status composite
Value 2140257693780282835301533407701805617875026808516477750204935392471270374368543239221018151852061643756243103931862633200453666932150586736251237328304380199057535248532760494995259812131404288451563418113368269121936160538802257773833151252185483984476809500325077774717917179239735313766784042063360826603167228068088983450092816691956533529839148542386020051681300115091289501533670817485740479979

Factorizations

Primary (ID: 3123) 1643464247728189221623609 (proven prime)
(ID: 15352) 1302284303865341977066560750118919280098129471361132028054770594457521318365258259963027558482280009652206342570818251048541150456974665467373178194583986283582423181774191383822795539328546821713295440775598461691935440311360339811496671979277517816477669649241422737762569180248755595453763537129595607720717517264656455685573335852290504670506320106860305681125219872100931 (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.