Base 19 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
141: | \[{19^{141}-1\over18}\] | 3 × 127 × 25557661 × 14181593915674057777379594590494257480484229<44> × 70169234660105574400577005075855017842743056666917902427141<59> × 11552270865338300220554014486116160478956555065321715165980131059849<68> |