1. The problem is to convert a decimal number to hexadecimal without using binary. 2. The method is to repeatedly divide the decimal number by 16 and record the remainders. 3. Important rules: - Divide the decimal number by 16. - Write down the remainder (0 to 15). - Use digits 0-9 for remainders 0-9 and letters A-F for remainders 10-15. - Repeat dividing the quotient by 16 until the quotient is 0. - The hexadecimal number is the remainders read in reverse order (from last to first). 4. Example: Convert decimal 254 to hexadecimal. - Divide 254 by 16: quotient = 15, remainder = 14. - Divide 15 by 16: quotient = 0, remainder = 15. - Remainders are 15 (F) and 14 (E). - Reading from last to first: FE. 5. So, decimal 254 equals hexadecimal FE. This method directly converts decimal to hexadecimal without using binary.