Question

usando a decomposição em fatores primos,escreva a forma fatorada completa de cada um dos seguintes números:
a)72
b)300
c)140
d)648

Answer 1

Olá, Emilly.

$a)\\72|2\\36|2\\18|2\\9|3\\3|3\\1\Rightarrow72=2^3\cdot3^2 \\\\ b)\\300|2\\150|2\\75|3\\25|5\\5|5\\1\Rightarrow300=2^2\cdot3\cdot5^2 \\\\ c)\\140|2\\70|2\\35|5\\7|7\\1\Rightarrow140=2^2\cdot5\cdot7$

$d)\\648|2\\234|2\\117|3\\39|3\\13|13\\1\Rightarrow648=2^2\cdot3^2\cdot13$