Base 19 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| * 399: | \[{19^{399}-1\over18}\] | 3 × 127 × 229 × 701 × 6841 × 70841 × 375593 × 30640261 × 68443621 × 102664297 × 80558460464029837<17> × 81403978301424181910737<23> × 109912203092239643840221<24> × 4172208700142561819962912573<28> × 21355791872293580555642831813<29> × 36083496474858467271806379180491151207975549501624609295264624954056624056353<77> × [16702294670147388657512247724581407445472209704931229013538561591121152846486493716600558109258370580033299379568120993846846055032222368781814594870398189645246060936136248046595055618360285341856264269022522981460457162737142878697240594735347306783405913396090194953<269>] |