Base 17 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 220: | \[{17^{220}-1\over16}\] | 22 × 32 × 52 × 112 × 23 × 29 × 71 × 89 × 101 × 947 × 21881 × 25741 × 63541 × 88741 × 187441 × 15357101 × 87415373 × 256152733 × 3332897591 × 6901823633<10> × 131270654681<12> × 2141993519227<13> × 962619789378941<15> × 315531140147973311<18> × 9676621900652970832801<22> × 1589964573680716277298682310078923206992149252451<49> × 1149894110635687965812877667192350259163213479893526981027481<61> |