Base 15 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 682: | \[{15^{682}-1\over14}\] | 24 × 23 × 67 × 311 × 463 × 683 × 2333 × 8537 × 381239 × 394879 × 958459 × 23504771357<11> × 12871001296201<14> × 23146115087987<14> × 14572134604887829<17> × 50091487468745647<17> × 172284412340113595326141694055623<33> × 660603097954354915026956925328631<33> × 66649608752412990973999620885739553299402179097724433473157442817730038957988441157287646885596121406592486373009881829911291087839117088869326546809715430081472909683656840492875534760486620665582684094477297468990937449896853312623561466356999056678890589960375975291348231164440731480876818148313<299> × [3284378823894541419481251369501258938549494484588670887826610539068451094318086535140376479190217491226891332057167581012613491389936619964940434887510361410212231806158043099365029807965270003052114738330166663871816199735780639815263361118820191734705816135144224092032753334635415617470147363520473546212344398517168321974950217<331>] |