Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 442: | \[{15^{442}-1\over14}\] | 24 × 53 × 79 × 137 × 443 × 157483 × 703223 × 16655159 × 340593709 × 1045002649 × 6734509609<10> × 51007710079<11> × 66235888343<11> × 1539711288259<13> × 101462866544971<15> × 2288007801175676319020310450383<31> × [3715643858750835251753909042078993958803412219427375195196001963114018380855309755323114663217487084660806515297561127646797429812870184333027776969419232407813<160>] × 6019473617095910810405643116554900751260078533677264768122817030629284192746685445376640615610452928703392579361688186623190084447488357003712701401041577633906917339124773712456435176733943548566173859623213566879398193359361<226> |