Base 23 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 205: | \[{23^{205}-1\over22}\] | 83 × 292561 × 430091 × 3992171 × 117018989947<12> × 317018172698691402707105521066838685448001<42> × [41915937574913836280485103277634119051340723313204856480045601580810698960786276433255637720433323971780747701138946491778491261417884411725629058512705416079747356447308580003130898131325678176761860710441<206>] |