If 5 rational numbers are multiplied and their product is negative, then the negative factor is.

If 5 rational numbers are multiplied and their product is negative, then the negative factor is.

Multiply 5 rational numbers, their product is negative, negative factor has 1,3 or 5(odd number)

The classification diagram of finding numbers is real integer natural number rational number and so on

Real number: including rational number and irrational number,
Rational number: including integer, fraction ---- irrational number: infinite non-recurring decimal
Integer: includes positive integers,0, negative integers, where (0 and positive integers are natural numbers)
Fractions: positive and negative fractions.