Base 29 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
78: | \[{29^{78}-1\over28}\] | 2 × 32 × 5 × 132 × 53 × 67 × 79 × 271 × 521 × 3407 × 7489 × 148123 × 252918667 × 4748492087<10> × 1639193821682322095416837009042879<34> × 9297933549871103174322922194269557<34> |