Factor Info
| ID | 1977 |
| Size | 181 digits / 599 bits |
| Status | composite |
| Value | 1257217005331088685907510713555631241927450014826877807693104188054738769271332409671894976722606861105568176344347716435191679751616607143791880667738373832223939785275053465116399 |
Factorizations
| Primary | (ID: 10091) 16423351184578890505278662953559 (proven prime) |
| (ID: 10092) 76550576749012315576500547303087298451072079093074861662771849790208842095259608224340786498145771943744570774252784241132765513564093707787875262761 (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.