Base 30 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 247: | \[{30^{247}-1\over29}\] | 191 × 911 × 13339 × 178907 × 252877 × 443845663 × 598183165316665163<18> × 2098323645062285611121141<25> × [41629538421012629325451963231448052186753440679768493761236947877307005049216955756837880556675385035548541051512722333461012419511663413399932913745942618756681710587094413316381129132197536210792020775580140480787945979108016290832901450004931230436585450347147510855004436786568620924763159<293>] |