Factor Info

ID 128662
Size 661 digits / 2196 bits
Status composite
Value 8041028480727069617428291324008319527643211903441365933675451933222763952273658515872895252480689404295397654862091702954546105268455594098425826710003435131220381804797563871833118874738082674529107801001806759028903519291944590555233177012055035306293717664931401745201456939032881067906594052454180234822560235944329918849314631849673468086648251862092209708657411506415320987740142788168474469692194073969237300467611761953854990139031238413565525092324465113567972732508703318311159279719827400135231411351892272323094899126542199500349438176184360818943606339512260516133543070489986200998828285595011886293385009283271093320820252478118351955773254632501

Factorizations

Primary (ID: 9178) 4058732337480272357397526057719737468148541858623561199073004257501 (proven prime)
(ID: 128663) 1981167471053060882271809393171332137004047845739649311130933098956814189743778557693142753653983185779169692098317398111087774784500046135566902222278514124302234893602015194907991470275938535891041545307187931631761850308955330187184410446580927299934812368210279968694425941773297654723418740499494034646619982184695935667174971434903485116435771460287175951271349039736565922105999229405014650820038944207960730084965046552423471981160866969028097978728723892011668463761499359087994905197542343654501095126418115638468524203297058622120043804224434371335824188273098232839937164947437875001 (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.