2 ms·For people confused by the above notation: 2 = 3 × 2⁰ − 1 191 = 3 × 2⁶ − 1 383 = 3 × 2⁷ − 1by jwilk 3y agoFor people confused by the above notation: 2 = 3 × 2⁰ − 1 191 = 3 × 2⁶ − 1 383 = 3 × 2⁷ − 1