Question

Descompuneti in factori primi:a)126 b)6²·15³

Answer 1

126/2=63/3=21/3=7/7=1 

Answer 2

a)126= 2*$3^{2}$*7. Nu e numar prim este numar compus.

b)$6^{2}$*$15^{3}$=$6^{2} = (3 ^2)^{2}$$3^{4}$=>
$15^{3}=(3^5)^3= 3^{15}$=>$3^{15+4}=3^{19}$

Sper ca te-am ajutat!