Base 22 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 213: | \[{22^{213}-1\over21}\] | 3 × 132 × 853 × 1333807 × 440011993 × 778861707929881<15> × 22769098493537073593<20> × 377053680512007141568376667202052487341211277952201406148840465729<66> × [242151883247581826526615754747323564828301538654416453573337035389085417868918935979480263876129974527545009431883804243936031465786302019427570542892592432693263523<165>] |