Base 30 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
66: | \[{30^{66}-1\over29}\] | 72 × 13 × 19 × 23 × 31 × 67 × 397 × 88793 × 460087 × 11275111 × 279811489 × 5829525967<10> × 125673792020899<15> × 610851724137931<15> × 80489293617655689493<20> |