Factor Info

ID 18563
Size 253 digits / 840 bits
Status composite
Value 4180350078260796678272396891367344980888192529232055719748750071164216968906790328793479743961576493341974148587410624152891824319435414871919225979645648719401524675210443891996523379257521223973819191704668279350916776720771884332667284148668526983679

Factorizations

Primary (ID: 18564) 159703539091173717215233350675579780103029299243483 (proven prime)
(ID: 18565) 26175688416486887398741753376818809081411302407686668951055921625157455988403035196041300275574195843205497896750369620488690558396085849764715006977588376682727304621070393099850346458586407662010704813 (proven prime)

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.