Lucas Sequence
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 1620: | \[L_{1620}\] | 2 × 7 × 23 × 241 × 647 × 2161 × 6263 × 8641 × 20641 × 103681 × 2756161 × 2651851441 × 12340209383<11> × 177962167367<12> × 13373763765986881<17> × 21921925230177138721<20> × 4649273364336653337841<22> × 3714629684552933486390606285281<31> × 173421718166321520831726341471281<33> × 211147827837410728467664213741775985604772881<45> × 9708270681332851009594289857896521215293112615602731464625368787894840155614746464715716168748750698748593681<109> |