Which number is the smallest?
4 (x
A 1.28 * 10 ^ - 4
B 2.85 * 10 ^ - 6
X
3.24 * 10 ^ - 5
CD
4.68 * 10 ^ - 4
E H 5.48 *10^ -8*
4 (x
A 1.28 * 10 ^ - 4
B 2.85 * 10 ^ - 6
X
3.24 * 10 ^ - 5
CD
4.68 * 10 ^ - 4
E H 5.48 *10^ -8*