Base 23 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 156: | \[{23^{156}-1\over22}\] | 24 × 32 × 5 × 7 × 133 × 37 × 53 × 79 × 157 × 859 × 7549 × 2861561 × 47691619 × 278640181 × 480393499 × 19243596061<11> × 1489531614247<13> × 3829141917458729<16> × 21001515080686141<17> × 30125172037951849<17> × 459408054528299360264076035007841<33> × 12007983745329010766540936913105676598821583784330830581<56> |