Base 22 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 420: | \[{22^{420}-1\over21}\] | 3 × 52 × 7 × 132 × 23 × 29 × 31 × 43 × 61 × 71 × 97 × 157 × 181 × 211 × 401 × 421 × 463 × 1489 × 3529 × 3571 × 4481 × 55441 × 83273 × 86969 × 106261 × 150901 × 224071 × 245411 × 404671 × 468241 × 882701 × 9299179 × 16968421 × 34379269 × 57036911 × 858794191 × 1267338829 × 1850478481 × 8878834021<10> × 66068941261<11> × 108635136821<12> × 816048655801<12> × 25375062902561<14> × 6444508898190421<16> × 12271836836138419<17> × 60301563935442061<17> × 892792661763983821<18> × 10253921496675516661<20> × 37025106244928012401<20> × 496997570388443929351<21> × 2765572455580426279379621<25> × 6482477075260707069597975952254601<34> × 452938149539915950213210407912164556721<39> × 123806070018020701547275035424676470189280236603825527904699381<63> × 609056404054943265733130375995959186500838813695476566109474674601<66> |