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23 lines
560 B
Python
23 lines
560 B
Python
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#from Python.Math import prime_generator
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import math
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from itertools import takewhile
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def primeCheck(number):
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if number % 2 == 0 and number > 2:
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return False
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return all(number % i for i in range(3, int(math.sqrt(number)) + 1, 2))
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def prime_generator():
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num = 2
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while True:
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if primeCheck(num):
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yield num
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num+=1
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def main():
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n = int(input('Enter The upper limit of prime numbers: '))
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print(sum(takewhile(lambda x: x < n,prime_generator())))
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if __name__ == '__main__':
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main()
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