Răspunsuri

2014-07-16T15:41:22+03:00
3⁴³(1+3+3²)=3⁴³ * (4+9)= 3⁴³ *13 :13= 3⁴³
Cel mai inteligent răspuns!
2014-07-16T15:44:52+03:00
Notam numarul 3^{45}+3^{44}+3^{43} cu  litera A
 3^{45}+3^{44}+3^{43}
 Dam factor comun pe 3^{43}

  3^{43}*( 3^{2}+3+1)=3^{43}*(9+3+1)=3^{43}*13 

A=13*3^{43}⇒A divizibil cu 13