4^2 * 8^3 * 2^5 * 16 =
= (2^2)^2 * (2^3)^3 * 2^5 * 2^4 =
= 2^4 * 2^9 * 2^9 =
= 2^22
4²×8³×2⁵×16 =
= 2²⁾²×2³⁾³×2⁵×2⁴
= 2⁴×2⁹×2⁵×2⁴
= 2⁴⁺⁹⁺⁵⁺⁴
= 2²²
