Express the number 20000 as a single digit integer times a power of 10

The answer is 2 x 10^4 or 2 to the power of 4 (4th power) where;

2 x 10 x 10 x 10 x 10

2 x 10 = 20

20 x 10 = 200

200 x 10 = 2000

2000 x 10 = 20 000

Expressing a number to a single digit integer times a power of 10 is also writing a number in scientific form, where the number is multiplied by 10 to nth "power". Scientific notation is also called standard index form whereby, too large or too big numbers.

In writing the scientific notation of a number it follows this form: m x 10^n (m is multiplied to 10 to the power of n) where, m, the coefficient, is the real number and n is the exponent integer.