Factor Info
| ID | 4221 |
| Size | 183 digits / 607 bits |
| Status | composite |
| Value | 307946912309297741556982903140903215501247583692242812900420427477480854752737151407753163602504031681364151995477229513165919689448916706365827428122320406481216837934655810881126361 |
Factorizations
| Primary | (ID: 11490) 610750585993378533918571366551132613003293697 (proven prime) |
| (ID: 11491) 504210588367141337242618878475927423280316140971751701077127890485673968877718991187197029450161772747335442226187851047716605340725373913 (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.