Norway Math Olympiad Question | You should be able to solve this!

262.143

2^18 - 1 =

Diferença de dois quadrados, pois, 18 é, logicamente, múltiplo de 2.

(2^9)² - 1² =

(512 + 1) * (512 - 1)

512² - 1=

262.144 - 1 =

262.143

262,143






2^18 - 1 =

Difference of two squares, since 18, is logically a multiple of 2.


(2^9)² - 1² =

(512 + 1) * (512 - 1)

512² - 1=

262,144 - 1 =

262,143