Nguyên tố:

from math import sqrt
n = int(input())

def prime(n):
    if n < 2:
        return False
    for i in range(2, int(n ** 0.5) + 1):
        if n % i == 0:
            return False
    return True

if prime(n):
    print('YES')
else:
    print('NO')

Chính phương:

from math import sqrt

n = int(input())

def cp(n):
    return n == int(sqrt(n)) ** 2

if cp(n):
    print('YES')
else:
    print('NO')

#toidicodedao

*Nguyên tố:

import math

n=int(input("Nhap mot so nguyen duong: "))

for i in range(2,int(math.sqrt(n)+2)):
    if n%i==0:
        break;
if i>math.sqrt(n):
    print("N la so nguyen to")
else:
    print("N khong la so nguyen to")

*Chính phương:

import math

n=int(input("Nhap mot so nguyen duong: "))

if math.sqrt(n)==int(math.sqrt(n)):
    print("N la so chinh phuong")
else:
    print("N khong la so chinh phuong")