Exponents are a convenient way of keeping track of the number of factors of one number in a product.
Rather than write . This is true for a whole number, a fraction or a decimal. So, for any number 'x', and whole numbers 'm' and 'n', we have ex. B. From simple division, we know that 81 divided by 9 equals 9, and 81 divided by 3 is 27. The square root of a number like 9 is another number whose square is 9.