Which of these is not a valid octal literal?

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Multiple Choice

Which of these is not a valid octal literal?

Explanation:
Octal literals are base-8 numbers that use only digits 0 through 7 (often written with a leading zero). Because of that, any value containing a digit outside that range cannot be octal. The option that includes the digit 8, 0800, is not a valid octal literal. The other options—0777, 040, and 0123—use only digits 0–7, so they are valid octal literals.

Octal literals are base-8 numbers that use only digits 0 through 7 (often written with a leading zero). Because of that, any value containing a digit outside that range cannot be octal. The option that includes the digit 8, 0800, is not a valid octal literal. The other options—0777, 040, and 0123—use only digits 0–7, so they are valid octal literals.

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