Книга: Advanced PIC Microcontroller Projects in C

1.13 Converting Decimal Numbers into Octal

1.13 Converting Decimal Numbers into Octal

To convert a decimal number into octal, divide the number repeatedly by 8 and take the remainders. The first remainder is the LSD, and the last remainder is the MSD.

Convert decimal number 159₁₀ into octal.

Dividing the number repeatedly by 8:

159/8 ? 19 Remainder 7 (LSD)
19/8  ? 2  Remainder 3
2/8   ? 0  Remainder 2 (MSD)

The octal number is 237₈.

Convert decimal number 460₁₀ into octal.

Dividing the number repeatedly by 8:

460/8 ? 57 Remainder 4 (LSD)
57/8  ? 7  Remainder 1
7/8   ? 0  Remainder 7 (MSD)

The octal number is 714₈.

Table 1.3 shows the octal equivalent of decimal numbers 0 to 31.

Table 1.3: Octal equivalent of decimal numbers

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