13 lines
254 B
Python
13 lines
254 B
Python
def primes(N):
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a = 0
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for num in range(2, N+1):
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if all(num % i != 0 for i in range(2, num)):
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a += 1
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return a
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if __name__ == "__main__":
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print(primes(7)) # 4
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print(primes(15)) # 6
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print(primes(50)) # 15
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