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  1. for num in range(1,50):
  2. for i in range(2,num):
  3. if num%i == 0:
  4. break
  5. else:
  6. print(num,'is a prime')
Success #stdin #stdout 0.01s 27704KB
stdin
Standard input is empty
stdout
1 is a prime
2 is a prime
3 is a prime
5 is a prime
7 is a prime
11 is a prime
13 is a prime
17 is a prime
19 is a prime
23 is a prime
29 is a prime
31 is a prime
37 is a prime
41 is a prime
43 is a prime
47 is a prime