Base 22 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 284: | \[{22^{284}-1\over21}\] | 5 × 23 × 97 × 853 × 12071 × 60493 × 1333807 × 35032537 × 118520869 × 79974580909<11> × 22769098493537073593<20> × 12876874395996547063471896432636449<35> × 12797639702737946647611122764140908805213715217419318533345841<62> × 26206865954875809193913571534018776091728832468380302565497529<62> × 377053680512007141568376667202052487341211277952201406148840465729<66> × 738821036154162286110503852345015512953970892066814751009402268449059058318445028707926913<90> |