Factor Info

ID 21517
Size 342 digits / 1134 bits
Status composite
Value 156343877985709403758589965748439373465933141071715396001761259599680256260092819311684832318576650455000256314591389868591162225747455241633183309128874194617037207784201950368415880070422195184496943633183906027118608751413776039962167534158316593745126093678829410788048144128645726064887471580903094361914794055671412218143348731833586121

Factorizations

Primary (ID: 6868) 85725237432926769781584361 (proven prime)
(ID: 30014) 1823778885512404031707103055782805598778764139458293041339673317544601276678680064355628938531739337281991071071171088565100446630189333203475867285295625376532142950962583188306612161064974306417652483211876441269157219061658655761602617039845119042242889002280414298589974644426140170167697700259312951482055464161 (composite)
Secondary (ID: 6709) × (ID: 21518)

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.