Base 10 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 115: | \[{10^{115}-1\over9}\] | 41 × 271 × 31511 × 19707665921<11> × 20414137203567631<17> × 11111111111111111111111<23> × 5799951513941382144830754391<28> × 122403569491783662720773144041<30> |