Primitive Semiperfect Number/Examples/6

Example of Primitive Semiperfect Number

$6$ is a primitive semiperfect number:

$1 + 2 + 3 = 6$

Proof

We have that $6$ is a perfect number:

$6 = 1 + 2 + 3$

The result follows from Perfect Number is Primitive Semiperfect.

$\blacksquare$