Base 20 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 135: | \[{20^{135}-1\over19}\] | 11 × 31 × 61 × 251 × 271 × 421 × 3001 × 53101 × 65881 × 261451 × 64008001 × 879338701 × 1018404631 × 79083953101<11> × 298114935351301<15> × 3994611390415801<16> × 240335499722572329841<21> × 4340106427193878623481<22> × 248995526573042697684641524038945001<36> |