Base 19 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 390: | \[{19^{390}-1\over18}\] | 22 × 3 × 52 × 73 × 11 × 31 × 61 × 79 × 127 × 131 × 151 × 157 × 211 × 271 × 313 × 599 × 911 × 2251 × 2341 × 29251 × 96851 × 176021 × 291331 × 380251 × 1081291 × 2460181 × 7946641 × 38324521 × 52356721 × 133338869 × 153079681 × 887960971 × 2332339231 × 347014883671<12> × 421451911540236097<18> × 77685006382386461342123321<26> × 2202409598047314333465675421<28> × 297244283824870131851338940041<30> × 3308278256026098301966428613621<31> × 764224739004587705859669872633651<33> × 325171039458979361506040909686733801<36> × 752706203221706528767532954877315271847871419138316757841011<60> × 183722040121593137136354204016642530054818342052000503767248387202667914876853107128392917021<93> |