Given:
The sum of three consecutive natural numbers is 816.
Let the numbers be x, x+1, and x+2.
To find the numbers:
Since, the sum of three consecutive natural numbers is 816.
So,
[tex]\begin{gathered} x+x+1+x+2=816 \\ 3x+3=816 \\ 3x=816-3 \\ 3x=813 \\ x=271 \end{gathered}[/tex]Hence, the numbers are 271, 272, 273.