a = int(input())
s = 0
for i in range(2,101):
if a % i != 0:
continue
else:
s += 1
if s-1 < 2:
print("yes")
else:
print("no")
代码见上图
a = int(input())
s = 0
for i in range(2,101):
if a % i != 0:
continue
else:
s += 1
if s-1 < 2:
print("yes")
else:
print("no")
代码见上图
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