Factor Info

ID 18288
Size 131 digits / 433 bits
Status composite
Value 21190281025843146573271696651185410284164729848835288179657781937366656242557100179772381554882172992490949341171197498522586422457

Factorizations

Primary (ID: 18289) 140745137728109762598398979050914020691536518797429361 (proven prime)
(ID: 8283) 150557819388250184737538915006485086145065087672198550975239193637571002600137 (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.