Base 29 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
72: | \[{29^{72}-1\over28}\] | 23 × 33 × 5 × 13 × 19 × 37 × 61 × 67 × 73 × 271 × 313 × 421 × 757 × 9001 × 14437 × 41203 × 353641 × 869689 × 10435069 × 55576681 × 467390730000853<15> × 1971810216061538373537448753<28> |