Factor Info

ID 155219
Size 253 digits / 840 bits
Status composite
Value 3702569329462415590513067128437552482461783985624379181783104638043053294387094259914735747462703517263641308749136268622433693360162223426542703317797362896975170037703380137763836423513221794382352078393841176016223296891776510836342100736109545593681

Factorizations

Primary (ID: 154819) 20561538346557397039189 (proven prime)
(ID: 155220) 180072583435000329117265931331612239591268310599116538588871742034318209919851134764755998668174100516689727152789569766760900320342624050912137089656647448610899928490965910664659186010401134654498660855169533722999110080785154829 (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.