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Question

The number $$23$$ is:
A. a prime number            B. a real number 
C. an irrational number     D. a rational number 


A
A,B,D are correct
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B
A,B,C are correct
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C
B,C,D are correct
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D
A,C,D are correct
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Solution

The correct option is A $$A, B, D$$ are correct
The number $$23$$ is a prime number as it has only factors $$1$$ and itself.
It is a rational number as it can expressed as a ratio $$\displaystyle \frac {23}{1}$$.
$$23$$ is also a real number as it can represented on a number line.
Hence $$A, B$$ and $$D$$ are correct.

Mathematics

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