Python Day 25: Running Time and Complexity

A prime is a natural number greater than 1 that has no positive divisors other than 1 and itself. Given a number, n, determine and print whether it's Prime or Not prime.

  1. # Enter your code here. Read input from STDIN. Print output to STDOUT
  2. from itertools import count, islice
  3. n = int(input())
  4. for i in range(n):
  5. x, prime = int(input()), True
  6. sq = int(x**0.5)-1
  7. if x<2: prime = False
  8. else:
  9. for num in islice(count(2), sq):
  10. if not x%num:
  11. prime = False
  12. print("Prime") if prime else print("Not prime") is your home of programming solutions, tutorials, video tutorials and much more. Sign Up for our weekly newsletter to get update about new content.

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