代码
import math
def judge(num):
if num<2:
return 0
for i in range(2,int(math.sqrt(num)+1)):
if num%i==0:
return 0
return 1
num=int(input())
if judge(num)==1:
print('YES')
else:
print('NO')
微信扫一扫
import math
def judge(num):
if num<2:
return 0
for i in range(2,int(math.sqrt(num)+1)):
if num%i==0:
return 0
return 1
num=int(input())
if judge(num)==1:
print('YES')
else:
print('NO')
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