Before Applying job posting in any websites or recruiting agencies or sending resumes to job recruiters or any other employment website you need to improve your skills on general knowledge, Aptitude, Puzzles, logical reasoning, general english, database, programming as per your job profile. Job recruiters or mostly preferring job candidates who are having more stuff in those categories mentioned above. So improving more skills on your job profile always boost up your career and your performance. Even hiring companies and job recruiters who are looking for many job posting websites actually they are looking and filtering on these activities. In these Numbers section you need to update more questions to perform well in front of job recruiters and companies. Numbers Interview questions are most important to score in interview, Update all questions to score well in all rounds in job interview.

Numbers interview questions and answers

26)
Which of the following is a prime number ?
  • 33
  • 81
  • 93
  • 97
+ View Answer
  • Answer
  • d) 97
  • Solution
  • Clearly, 97 is a prime number.

27)
Which of the following is not a prime number ?
  • 31
  • 61
  • 71
  • 91
+ View Answer
  • Answer
  • d) 91
  • Solution
  • 91 is divisible by 7. So, it is not a prime number.

28)
Which one of the following number is a prime number ?
  • 161
  • 221
  • 373
  • 437
  • None Of These
+ View Answer
  • Answer
  • c) 373
  • Solution
  • √437 > 20
    All prime numbers less than 20 are 2, 3, 5, 7, 11, 13, 17, 19.
    161 is divisible by 7, 221 is divisible by 13 and 437 is divisible by 19.
    373 is not divisible by any of the above prime numbers.
    373 is prime.

29)
Which one of the following number is a prime number ?
  • 119
  • 187
  • 247
  • 551
  • None Of These
+ View Answer
  • Answer
  • e) None Of These
  • Solution
  • √551 > 23
    All prime numbers less than 23 are 2, 3, 5, 7, 11, 13, 17, 19.
    119 is divisible by 7
    187 is divisible by 11
    247 is divisible by 13
    551 is divisible by 19
    So, none of the given numbers is prime.

30)
The smallest 3-digit prime number is
  • 103
  • 107
  • 109
  • 113
  • None Of These
+ View Answer
  • Answer
  • e) None Of These
  • Solution
  • The smallest 3-digit number is 100, which is divisible by 2.
    100 is not a prime number.
    √101 < 11 and 101 is not divisible by any of the prime numbers 2, 3, 5, 7, 11
    101 is a prime number.
    Hence 101 is the smallest 3-digit prime number.