Topic

Primes And Composites

Practice related MCQ quizzes and improve step by step.

Quizzes in Primes And Composites

Which of the following numbers are prime: 15, 17, 19, 21 Select all that apply.

  • 15
  • 17
  • 19
  • 21
Correct answer(s):
    • 17
    • 19


From the list below, select all numbers that are prime: 29, 51, 57, 61.

  • 29
  • 51
  • 57
  • 61
Correct answer(s):
    • 29
    • 61


From the list below, select all numbers that are prime: 29, 51, 57, 61.

  • 29
  • 51
  • 57
  • 61
Correct answer(s):
    • 29
    • 61