Python 判断一个是否是质数(素数)

#输入数,判断这个数是否是质数

num = int(input("请输入一个数:"))
if num > 1:   #质数大于1
	for i in range(2,num):
		if (num % i) == 0:
			print(num,"不是,质数")
			break
	else:
		print(num,"是质数")
			
else:
	print(num,"不是质数")
	

在这里插入图片描述
“100以内的质数共有25个: 2.3.5.7.11.13.17.19.23.29.31.37.41.43.47.53.59.61.67.71.73.79.83.89.97.”

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转载自blog.csdn.net/qq_38891369/article/details/104918088