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neongm

Untitled

Oct 21st, 2019
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Python 0.43 KB | None | 0 0
  1. #17-18 sec using PyPy
  2.  
  3. from time import time
  4.  
  5. def isprime(n):
  6.     if n%2==0:
  7.         print('False')
  8.         return False
  9.     for i in range(3,int(n**0.5),2):
  10.         if n % i == 0:
  11.             print('False')
  12.             return False
  13.     print('True')
  14.  
  15.  
  16.  
  17. n = 878761296072214601
  18.  
  19. print(len(str(n)))
  20. t = time()
  21. isprime(n)
  22.  
  23. print(time()-t, 'sec на проверку числа длинной', len(str(n)), 'знаков')
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