tables > repunit > 21

Base 21 Repunits

Table

Viewing: 684 – 684 << prev next >>

(available: 0-999)

Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>

* 684: \[{21^{684}-1\over20}\] 22 × 11 × 13 × 17 × 192 × 37 × 61 × 199 × 229 × 421 × 457 × 463 × 613 × 1693 × 3181 × 3877 × 28387 × 304609 × 609673 × 5285953 × 67505443 × 85775383 × 3263277133 × 12061389013<11> × 64793186833<11> × 832365876613<12> × 4344847859197<13> × 54921106624003<14> × 64423359035281<14> × 89287241422177<14> × 1769098309517989<16> × 987749814642143197<18> × 1343456427753441154701241543<28> × 201773586986282524421768503820293<33> × 1168393184916024427650240126995059<34> × 6553440934433074491786184400208956951461<40> × 1244541772187848099210936765314595053007129<43> × 3794540985952206860593938878074866571399837<43> × 4221771679991568872140247488173084599918532628921398895938769<61> × 759335118134710886340813211993720491870188616648988898625881069924137<69> × 1906545596109201001931181173321063934469362055720076288290431439788614388343220743<82> × [61705560617755230528916752551253805431192446588128629102421596248383373827125280081147859192713369578190342831017261083379480097412176271872861451543093750236639235921578895862503461033997381621733581940358305473666154084068455107282080805469316614720208592274316797159681<272>]

Index range: 684 – 684 << prev next >>