Base 28 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 302: | \[{28^{302}-1\over27}\] | 29 × 2417 × 6947 × 61609 × 15920837 × 12392588423<11> × 3912622419553<13> × 4180822876721<13> × 26991035025461754006311<23> × 3921876525626984750820893612423<31> × 416606199810995348253442741292004535138784304336314969<54> × 916826970770008164675732506398062574305085212335904122771671<60> × 9876839519956185234801620942382261247690911400133437565206930473761990572427219447<82> × 105449227412762746194437569909439344267400025826445560887510454976550627662258362065061304725351319336312128787848150667693128903433<132> |