How do you determine if a number is in scientific notation?

Answer 1

A scientific number is expressed in the form a*10^b where where a is a number written in decimal form and 1 <= |a| < 10,

and b is an integer.

If it is not in that form, it is not in scientific form.

Answer 2

In normalized scientific notation, all numbers are written in the form a x 10^b (a times ten raised to the power of b) where a is a nonzero single-digit integer and b is an integer.