Base 29 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
87: | \[{29^{87}-1\over28}\] | 13 × 59 × 67 × 16763 × 28711 × 84449 × 2428577 × 14111459 × 15399523 × 58320973 × 72084721 × 549334763 × 80135809447<11> × 770413330507<12> × 91805676602810491<17> × 41903177901783497727523<23> |