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25 lines
522 B
Python
25 lines
522 B
Python
import math
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n = int(input("Enter n: "))
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def sieve(n):
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l = [True] * (n+1)
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prime = []
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start = 2
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end = int(math.sqrt(n))
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while(start <= end):
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if l[start] == True:
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prime.append(start)
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for i in range(start*start, n+1, start):
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if l[i] == True:
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l[i] = False
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start += 1
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for j in range(end+1,n+1):
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if l[j] == True:
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prime.append(j)
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return prime
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print(sieve(n))
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