Java Taskbook Level 10.5

Задание 1

Given a number, display the process of factoring the number into prime factors, as in school.

Задание 2

Given an arbitrary two-dimensional array:

java{
  {11, 12, 13, 14, 15},
  {21, 22, 23, 24, 25},
  {31, 32, 33, 34, 35},
  {41, 42, 43, 44, 45},
  {51, 52, 53, 54, 55},
}

Zero out the elements of its main diagonal:

java{
  { 0, 12, 13, 14, 15},
  {21,  0, 23, 24, 25},
  {31, 32,  0, 34, 35},
  {41, 42, 43,  0, 45},
  {51, 52, 53, 54,  0},
}