Because the value of each digit is 16 times the value of a unit in the digit to its right.
It is called Hexadecimal
A hexadecimal colour code is a six-digit code where the code for any particular colour the RGB values, each represented by a 2-digit code as follows:the first two digits represent the hexadecimal code for the red colour type,the second two digits represent the hexadecimal code for the green colour type, andthe third two digits represent the hexadecimal code for the blue colour type.In each case, these codes include leading zeros, so that they are two digit codes in the range [00, FF]. This allows 256 different values for each colour type making 16,777,216 colours in all.
You multiply the first digit from the right by 1, the second digit from the right by 16, the third digit from the right by 16 squared, the fourth digit from the right by 16 cubed, etc., then add everything together.
Computers do much of their processing in binary. Hexadecimal is used as a kind of shortcut (easier to read for humans): each hexadecimal digit represents four binary digits.
The highest numerical digit is 9, but hexadecimal follows that with letters going to F. So in hexadecimal, F would be the highest digit.
Each 4-digit string of binary digits is equivalent to 1 single hexadecimal digit.
Write a program to convert a 2-digit BCD number into hexadecimal
Considering the lowest five digit hexadecimal number is 10000 (65,536) and the highest is FFFFF (1,048,575), there are 983,040 different hexadecimal numbers that are five digits.
WRITE A PROGRAM TO CONVERT A 2-DIGIT bcd NUMBER INTO HEXADECIMAL
Yes, a byte is 8 bits, and a one hexadecimal digit takes up four bits, so two hexadecimal digits can be stored in a byte. The largest hexadecimal digit is F (which is 15 in base ten.) In base two, this converts to 1111, which takes up four bits, which is why it only takes four bits to store a hexadecimal digit. With 8 bits, two hexadecimal digits can be stored (FF would be 11111111, which is 8 bits), and 8 bits make up a byte. Generally, 4 bits are always used to store a hexadecimal digit, using leading zeros where necessary. For example, the hexadecimal digit 5 would be stored as 0101, and the hexadecimal digits 5A would be stored as 01011010.
8
15
four
Each 4 bits of binary can make 1 hexadecimal digit. There are 16 hexadecimal characters including zero. This can be shown by the equation 2^4 = 16.
Because the value of each digit is 16 times the value of a unit in the digit to its right.
The single-digit representation of 10 is 1+0, which equals 1.