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Day 4 是否是素质 #1137

@Kevin123yang

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@Kevin123yang

num = int(input('请输入一个正整数: '))
end = int(num ** 0.5)
is_prime = True
for i in range(2, end + 1):
if num % i == 0:
is_prime = False
break
if is_prime:
print(f'{num}是素数')
else:
print(f'{num}不是素数')

没有定义0和1不是素数。我输入0和1都是素数

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