Base 22 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
60: | \[{22^{60}-1\over21}\] | 3 × 52 × 132 × 23 × 31 × 61 × 97 × 157 × 181 × 401 × 463 × 1489 × 150901 × 224071 × 245411 × 468241 × 858794191 × 1850478481 × 6444508898190421<16> |