Subject

    Quantitative Aptitude

    Topic

    Number

    Which one of the following is not a prime number?

    ক)
    91
    খ)
    71
    গ)
    41
    ঘ)
    31

    Explanation

    Prime Numbers :: Numbers which are divisible by only 1 and itself are Prime Numbers. It's answer will be 91. Because 91 can be divisible by 7,13,91,1. It is quite clear that prime number should be divisible only by itself and by 1.

    Find Tutors

    View all Tutors