Factor Info

ID 161287
Size 255 digits / 847 bits
Status composite
Value 661089370419982048666251705294338815696600327478544073636446015437296806001454074338659273106586007517646882491989605548470757539004097642985080477877395076674162011458615890927531589487036402268837147825915723906826562195996037095124331118686241794006839

Factorizations

Primary (ID: 161053) 109360487557214168805426773 (proven prime)
(ID: 161288) 6045047760729117686559589019103611458605978107186834428263685617625782686216614410274319061417962929248412383219671907401509772294988896973461360445978021983899535498780356994687753347033934945742994893083425441287457290193937243 (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.