In math, a number line can be defined as a straight line with numbers placed at equal intervals or segments along its length. A number line can be extended infinitely in any direction and is usually represented horizontally.

Every number that we see around us is made up of a series of digits, such as 1302 (one thousand, three hundred and two). The value that each digit has depends not only on what that digit is but also on its place, or position, in a number.

A number is a mathematical object used to count, measure, and label. The original examples are the natural numbers 1, 2, 3, 4, and so forth. More universally, individual numbers can be represented by symbols, called numerals; for example, “5” is a numeral that represents the number five.

A digit is any one of these symbols: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9. For example, the number 23 is written with two digits, 2 and 3. A number is an amount of something. It can be written with one or more – or many – digits.

The leftmost, non-zero digit in a number. It is the digit with the greatest value in the number.

A digit is a single symbol used to make numerals. 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9 are the ten digits we use in everyday numerals. Example: The numeral 153 is made up of 3 digits (“1”, “5” and “3”).

0

900 numbers

102

100

Interview Answers 198. 100^99 has 199 digits. Then we note that (100/99) ^ 99 is approximately 2.718 by approximation of e. As a result, 99^99 is approximately 100^99 / 2.718, which has 198 digits.

3 digits

After number means successor which 1 more or 1 greater than the given number. According to number system, 99 is between 98, 99, 100. Therefore, the 99 is just before 100.

10^18 Quintillion. Quadrillion, quintillion, sextillion, septillion, octillion, nonillion, decillion, and so on. 10^60 Novendecillion.