Which is the greatest 2-digit prime number?

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answer is B.

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Detailed Solution

Concept- Prime numbers are those that can be divided by 1 and the "number itself."
We have 2, 3, 5, and 7 as primes, but we discard them because they are single digits.
The two-digit primes are:
11,13,17,19,23,29,31,41,43,47,53,59,61,67,71,73,79,83,89,97
From this, we get 97 as the largest 2-digit prime number.
Hence, the correct answer is option 2) 97.

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