Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 288: | \[{7^{288}-1\over6}\] | 27 × 32 × 52 × 13 × 17 × 19 × 37 × 43 × 73 × 97 × 181 × 193 × 353 × 409 × 1063 × 1201 × 42409 × 117307 × 129169 × 137089 × 169553 × 25726609 × 51385969 × 104837857 × 635311009 × 13841169553<11> × 32952799801<11> × 47072139617<11> × 338325042961<12> × 33232924804801<14> × 108604397663266369<18> × 1347137238494276547832006567721872890819289910086437183564644288902542085305628801<82> |