1)9²°°³=(3²)²°°³ este patrat perfect
5²p-este patrat perfect
27²p³=(3³)²p³ nu e patrat perfect
10⁶p=(10³)²p
2) 2⁸=(2⁴)² nu e cub perfect
27=3³ cub perfect
64=2¹°=(2⁵)² nu e cub perfect ci patrat perfect
5⁴⁸=(5¹⁶)³ cub perfect
7²²⁵=(7⁷⁵)³ cub perfect
11²°°¹=(11⁶⁶⁷)³ cub perfect
17²°°³-nu e cub perfect