Base 5 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 264: | \[{5^{264}-1\over4}\] | 23 × 32 × 7 × 13 × 23 × 31 × 67 × 89 × 199 × 313 × 601 × 1453 × 5281 × 390001 × 595123 × 12207031 × 190771747 × 331660297 × 386478495679<12> × 1030330938209<13> × 112835047682166217<18> × 6509387183417404924784917<25> × 9080418348371887359375390001<28> × 2213895710934906295050485076049<31> |