Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 356: | \[{15^{356}-1\over14}\] | 25 × 113 × 179 × 807409 × 4761857 × 12684688516982941<17> × 18500463452718361<17> × 402910119444039736424873<24> × 65676083113904380645944483837814512276870289323783924855555171784208695064413<77> × 12556389966735717239290312867405392279627344229633295496808036453334967380715171<80> × 2315913135944576503920501141755422604883642317976671323564141551398926392942849492530221<88> × 7757895128262224857736368393347962253136308204775947837479917309289386341967444258954879446118578157<100> |