The answer is not 4, but find the answer, it's easy to solve it once you know it.
Good luck.
40?
Not gonna say anything here for a while, goodbye y'all, solve it yourselves guys and gals.
570025
84?
8 × 10⁰?
Avogadro's constant?
B02 Avogadro?
584398573498578349758378497259837589247597625783754573489519908014789038
There's 8 squares.
Is it a multiple of 4?
What do you think?