[tex]2 {}^{6} = (2 {}^{2} ) {}^{3} = ( {2}^{3} ) {}^{2} \\ \\ ( - 3) {}^{4} = ((- 3) {}^{2} ) {}^{2} \\ \\ ( - 2) {}^{45} = (( - 2) {}^{5} ) {}^{9} = (( - 2) {}^{9} ) {}^{5} \\ \\ 17 {}^{15} = (17 {}^{3} ) {}^{5} = (17 {}^{5} ) {}^{3} \\ \\ (- 23) {}^{17} =( ( - 23) {}^{1} ) {}^{17} = (( - 23) {}^{17} ) {}^{1} [/tex]
f) obs: 17 este numar prim, poate fi scris doar ca 1 • 17
