Base 3 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 413: | \[{3^{413}-1\over2}\] | 827 × 1093 × 4957 × 48301177 × 14425532687<11> × 489769993189671059<18> × 366438032528092142507<21> × 3721114359214874154231319889680078283<37> × 37698754823547437188883025448675820051387027651<47> × 715519214726922018211552045297038011880721278733<48> |