Factor Info
| ID | 8521 |
| Size | 210 digits / 695 bits |
| Status | composite |
| Value | 164052621634001137792864002191664766862591945753774437388461092490465766406823564383769394695381488763939064580996880301472439351608746285748367698020317032803251384820081467775566830043563365245775530316432897 |
Factorizations
| Primary | (ID: 8522) 219516040470409575257 (proven prime) |
| (ID: 8523) 747337740250991721734178485534208479811395176507413184653979324634252885532943048839123623994851300508183778980652532628989285051354621464274504872295126115489893504279834566763898163532521 (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.