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→Decimal / Binary / Octal / Hexadecimal Numbering Systems
The '''octal''' and '''hexadecimal''' numbering systems consist of digits of numbers '''0 to 7''' and '''0 to F''' respectively. For ''hexadecimal'' numbers, values for '''10 to 15''' are represented by the characters '''A to F''' respectively.
The '''octal''' and '''hexadecimal''' numbering system is are based on sums of the power of 2'''8''' and '''16''' respectively.
According to the diagram to the right, each digit moving to the left of units value is the placeholder multiplied to the power of two. Units are ten to the power of zero (which is 1), then two to the power of one (which is 2), etc.