Factor Info
| ID | 21897 |
| Size | 183 digits / 607 bits |
| Status | composite |
| Value | 396833654296260483219706824695190887609416671331312222615755538948861425755805762333630321526136056357106242639924140451271678181295915732833400325115893913701332090660341632198480633 |
Factorizations
| Primary | (ID: 7504) 150080764792922988676714149209 (proven prime) |
| (ID: 30660) 2644134009070381879758272192388087925394581764448982179747406876722159152653000394477424461317710488166525781717131264001971824001132141989738641911871137 (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.