ABC26GN0121 · Number System

Subject: General Aptitude · Chapter: Number System · Exam: 2010 · Marks: · Difficulty:

Which of the following is a prime number?

(a)19

(b)20

(c)21

(d)22

Answer

Answer (as printed): A

Explanation

Clearly, 19 is a prime number.

Explanation as extracted from the printed page; notation may be imperfect.

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