Base 7 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
531: | \[{7^{531}-1\over6}\] | 32 × 19 × 37 × 709 × 1063 × 89209 × 459257 × 134927809 × 550413361 × 354639323684545612988577649<27> × 22724865586634953261986967832791<32> × 64289143014796069613986636959693464761093760104886421277219<59> × 1238368572065475640092267055236523805776719857838630437616345612275122160247100734042945202245579428545699517091815567829013854429088518967417675310433290449565339218720966747194239278539669797287863281305843500550962807860681871274311263364982211617841698232863863197873753755041315323793664849<295> |