Base 6 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 250: | \[{6^{250}-1\over5}\] | 53 × 7 × 11 × 101 × 251 × 311 × 751 × 5501 × 18198701 × 40185601 × 9536585501<10> × 3655688315536801<16> × 2694730860384999001<19> × 117811792772681609501<21> × 105875321588567599765751<24> × 1098445767808750903973251<25> × 233805293126289020639202084597666844981225400241001<51> |