Factor Info

ID 28142
Size 650 digits / 2157 bits
Status composite
Value 17858474357007393115518908791528654311258475175171555584479664397530783516092761866236109200134521260352601502374873243771334384595982548653437966599804283503113935536568359127813785094186362456608572250431757071210574815446636852104114881587411634439331058379399517031798197398374187068335060998509001122930985559999401489399225201745962306899177717982949686692483678481478417984991676543061498675649260010302701507925597709147495268506664957236544763650316010729165624108223372805613910948032104849014384143104513983563006484527825956310550784225755219792995655275764611455304637320520100997412626436749282381665825039917543146944202202833138522581

Factorizations

Primary (ID: 2380) 249227787818677482257 (proven prime)
(ID: 28143) 71655229592617095147933346374261114571168126888471778710529115938410001061973127085669838624556120746028630731360902807292567032725048878725924829670791138527378875589290975002098832935090679189116522973811646800091185123772072882688242684826700288317410168917345356373833313803383899757492631502741950250662552875025258140904690100500784333563750276879154529484189533153960308985591652483868305305137807587767430866572060264038589193436436995942487641024199697291917899671815027381119657200340777068282820849473788571215854328994579536863577153160489113346333078465004187973064907187779036248796378073760795113823555560672883333 (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.