Which numbering system is base 8 and uses digits 0 through 7?

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Study for the CodeHS AP Computer Science Principles (CSP) Exam. Prepare with flashcards and multiple choice questions, each question comes with hints and explanations. Get ready for success!

Multiple Choice

Which numbering system is base 8 and uses digits 0 through 7?

Explanation:
Number systems are defined by a base and the set of digits allowed. A base 8 system uses eight symbols, 0 through 7, and each position represents a power of 8. That’s what octal is. Other bases use different digit sets: decimal uses digits 0–9 (base 10), binary uses only 0 and 1 (base 2), and hexadecimal uses 0–9 plus letters A–F to represent values 10–15 (base 16). So the system described is octal.

Number systems are defined by a base and the set of digits allowed. A base 8 system uses eight symbols, 0 through 7, and each position represents a power of 8. That’s what octal is. Other bases use different digit sets: decimal uses digits 0–9 (base 10), binary uses only 0 and 1 (base 2), and hexadecimal uses 0–9 plus letters A–F to represent values 10–15 (base 16). So the system described is octal.

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