Answer:
There are many answers depending of which types of numbers you can choose from.
Whole numbers: 1 * 7
Integers: 1 * 7, -1 * (-7)
Rational numbers: Any two rational numbers whose product is 7 such as
3.5 * 2; 0.1 * 70, 14 * 0.5
Irrational numbers: any two rational numbers whose product is 7, such as sqrt(7) * sqrt(7).
