Factor Info

ID 55519
Size 245 digits / 812 bits
Status composite
Value 21891816666111741356519253518906612806763008610649117426016707834869834501179203678639885503769974095605920720375601805833538656591390781798213225399055221367621449254092717643414366632574932945987541855874637517557241467741370858142752135929621

Factorizations

Primary (ID: 54851) 158943831041162255277151 (proven prime)
(ID: 55520) 137733037656820659496949900017192153244322386284639254704655322977164230608207015112288438408370321179076993760470584347053215585264173611981513872953333503763289693635579941027187435455322991172607830636640327685417416971 (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.