Base 8 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 372: | \[{8^{372}-1\over7}\] | 33 × 5 × 13 × 19 × 37 × 73 × 109 × 373 × 1117 × 5581 × 8681 × 16183 × 26227 × 34039 × 49477 × 140617 × 384773 × 1437967 × 529510939 × 715827883 × 2147483647 × 2903110321 × 119232435043<12> × 775844757937<12> × 85384915399027<14> × 833732508401263<15> × 951088215727633<15> × 658812288653553079<18> × 4611545283086450689<19> × 2034439836951867299888617<25> × 6444365376140611199022187<25> × 1159786009184278940605658153872708441955317<43> × 16876658717031589479860902742568825114336243721<47> |