Factor Info

ID 155568
Size 450 digits / 1493 bits
Status composite
Value 261152081518974128175022650318260768416491156966894753629405894451202876589862315005698196459761508846263328948604656343165957878476366961084732994865990139899914583244491075880936536355195146162629922420892621669372228979180010066646842834250377867770835565923166811572539042693976021586666658500842133219040091139330430764701283371881519221724578727695780951433898617327593215596816968432329951401166896786578877244244262642750201698898241074182017

Factorizations

Primary (ID: 154627) 55107727353928381036964167246494350909954881 (proven prime)
(ID: 189523) 4738937605641575700901480004494161308183507975167822157588781312115012733673289650977572894465201405810896565607547011212248270583571506736962285061766897277272071479264086069847114668111325394610498179569840217506925170545443110904973700767691328372626624164562173349378781545472851487631968948530552439400308549259543597316554701333489183792550060362757364103393269774966391307219659716735207690327329857 (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.