Factor Info

ID 161908
Size 585 digits / 1943 bits
Status composite
Value 687223549370905275012835231045023052938223045920133490172294816588491409037352963372489564603980753377764929852214787581755433835987918420056177545977853244281642116983735699677124862051385968525098596647387516789500526511351907602872858989879362073547486550450742749432965826944998431950446193869852676266302072055265877745438141635739080773946116408898505546301227058853131888950099885139755134313356705344958244012835538303267940482249892154267837900702155790074098900987201020374667452311384521138658857438366631758370747179616406267960964383043604065781985595775327451985751333133

Factorizations

Primary (ID: 193520) 42565160209717759056758595322051109436434051 (proven prime)
(ID: 194186) 16145212328227299651674137546951507220186367147880172122745560687999480631312944777085253535889940433815800438127627869064747972201554810520555676178678110719757409602496947007289877083422484947299807152485801202365421430622506608827831728703077608358650062237724863388586115970096052728317773902211470212876527700972512765864101273728713225782564740675808300922386304305912577878865372442094918724836509789566181682428394400310045352969628245038224564265420796155805634337087745359554899532351019537731814706757127241401018957055767207111983 (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.