Factor Info

ID 187312
Size 486 digits / 1614 bits
Status composite
Value 515796554348300283219532328854043274219198703819080847030224567174832052994604619431542290795918154432985470876216110618426681421892167207136597179145123539889816958191656256659348327340602501167811366993943897923986344206957210082034330198934820042472792886593895538245520110561813949871801957805443272952958259307608303622547531429414198468281597649787079837533589976830111155984460619230174270234464795960366729710313519986187345672243602755383528592595290923354968526564112584943471

Factorizations

Primary (ID: 152206) 391061376751449733631793465114261320107553845297768849234837044581521 (proven prime)
(ID: 187313) 1318965730221242397958820072571338441174541009267108266916622180518144916166758038737427523972538548029506978723280464189163403248222955180868050790779417130853489696995941783794835957635404658478016763757484684349091435175109833706348774109138438715411902829341520335196040890282255797883331831825059331114478129089837889152433544122664957261116976202996781467235207829356968879534919077783413395973912056475914877951 (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.