What are the parts of a number in scientific notation?

Answer 1

n x 10k ; n is the coefficient, 10 is the base, k is the integer exponent.

Answer 2

In scientific notation, a number is represented as the product of a coefficient and a power of 10. The coefficient is a decimal number between 1 and 10, and the power of 10 indicates the number of places the decimal point is moved. For example, in the number 4.2 x 10^3, "4.2" is the coefficient and "3" is the power of 10.