Sum of cubes of digits of $153$ equals

Sum of cubes of digits of $153$ equals
  1. $153$
  2. $135$
  3. $163$
  4. $143$

Solution

$1 + 125 + 27 = 153$. ($153$ is an Armstrong number.)

Asked in: IMO

Practice more CUBES AND CUBE ROOTS questions on Aicharya