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print all prime which less than N using python
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| import math | |
| N = 200000 | |
| M = int(math.sqrt(N)) + 1; | |
| a = [1]*N | |
| for i in range(3, M, 2): | |
| for j in range(i+i, N, i): | |
| a[j]=0 | |
| print 2 | |
| for i in range(3, N, 2): | |
| if a[i] == 1: | |
| print i |
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