Lucas Sequence
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 2781: | \[L_{2781}\] | 22 × 19 × 619 × 1031 × 5779 × 1270029990781<13> × 119384467630399<15> × 5257480026438961<16> × 51353260271880578119<20> × 17721607949113295608870591<26> × 2216051880587916003268636813231<31> × 25982330775853795859162391018783589<35> × 16350498957181546320076926160177442671<38> × 3175841508587599663114310727075997296589134941461<49> × 257485923516038346055886192369083306335376801971541556423027732618325387270651321627146059449807382125849973486431679766801204485997697446344790479912887481696413911544613231918842689381596557902390839736939334476506681186984668143858249706803095411436953511973736329083516916059452934882714878390520407710690974632904025312035026609<333> |