Base 30 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
72: | \[{30^{72}-1\over29}\] | 72 × 13 × 17 × 19 × 31 × 37 × 53 × 67 × 73 × 163 × 241 × 3361 × 13681 × 120871 × 809101 × 203309569 × 729027001 × 8987660137<10> × 154589869729<12> × 656830663921<12> × 531440999271000001<18> |