what number is smaller than 19 but more than 4 factors
\(18\to\{1;\ 2;\ 3;\ 6;\ 9;\ 18\}\\16\to\{1;\ 2;\ 4;\ 8;\ 16\}\\12\to\{1;\ 2;\ 3;\ 4;\ 6;\ 12\}\)
16 is smaller than 19 but has more than 4 factors.16 = ( 1 X 2 X 2 X 2 X 2 ) Answer
