645 Octal in Hex

Converting an octal number to hexadecimal without a calculator involves first converting the octal number to binary, then grouping the binary digits into groups of four, and finally converting each group to its hexadecimal equivalent. Here's a step-by-step guide for octal number645:

Step 1: Convert Octal to Binary

Convert each octal digit to its 3-bit binary equivalent:

68 = 1102

48 = 1002

58 = 1012

Step 2: Group Binary Digits

Group the binary digits into groups of four, starting from the right. If the last group has fewer than four digits, pad it with zeros on the left.

Binary: 1 1010 0101

With Zeros: 0001 1010 0101

Step 3: Convert Each Group to Hexadecimal

Convert each group of binary digits to its hexadecimal equivalent:

00012 = 116

10102 = A16

01012 = 516

So, the hexadecimal representation of the octal number 645 is 1A5.
Octal To Hexadecimal Converter



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