Created
December 6, 2010 08:31
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A python script to generate and check prime numbers.
Usage for 100 runs(generates 5017 primes):
python prime.py 100
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| from sys import argv | |
| from fractions import gcd | |
| primes = [2, 3] | |
| def isprime(p): | |
| if p == 2: return True | |
| if p % 2==0: return False | |
| max = p**0.5+1 | |
| i=3 | |
| while i <= max: | |
| if p%i==0: return False | |
| i+=2 | |
| return True | |
| for i in range(0, int(argv[1])): | |
| q=sorted(primes)[i] | |
| for i in range(0, q-2): | |
| i+=1 | |
| p=int((i**2)+i+q) | |
| if isprime(p)==True: | |
| if p not in primes: | |
| primes.append(p) | |
| print len(primes) | |
| print sorted(primes)[:200] |
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can you reformat the code.