# Python Program to Check Perfect Number

Python program to check perfect number; Through this tutorial, i am going to show you how to check perfect number in python program.

In this tutorial, i will write 4 python programs to check if a number is a perfect number. And also will write a program to print perfect numbers from 1 to 100 in python

## Python Program to Check Perfect Number

See the following python programs to check if a number is a perfect number; as shown below:

• Python Program to find Perfect Number using For loop.
• Python Program to find Perfect Number using While loop.
• Python Program to find Perfect Number using Function.
• Print perfect numbers from 1 to 100 in python

### Python Program to find Perfect Number using For loop

• Get input number from the user.
• To check whether a number is perfect or not using for loop
• Print the result.
```# Python Program to find Perfect Number using For loop
# take input from user
Num = int(input("Please Enter any Number :- "))
Sum = 0
for i in range(1, Num):
if(Num % i == 0):
Sum = Sum + i

if (Sum == Num):
print("It is a Perfect Number")
else:
print("It is not a Perfect Number")```

Output

```Please Enter any Number :-  10
It is not a Perfect Number

// test other number
Please Enter any Number :-  6
It is a Perfect Number ```

### Python Program to find Perfect Number using For While

• Get input from the user.
• To check whether a number is perfect or not using while loop
• Print the result.
```# Python Program to find Perfect Number using While loop
# take input from user
Num = int(input("Please Enter any Number :- "))
i = 1
Sum = 0
while(i < Num):
if(Num % i == 0):
Sum = Sum + i
i = i + 1

if (Sum == Num):
print("It is a Perfect Number")
else:
print("It is not a Perfect Number")```

Output

```Please Enter any Number :-  6
It is a Perfect Number```

### Python Program to find Perfect Number using Function

• Take input from the user.
• Check whether the number is Perfect number or not using function.
• Print the result.
```# Python Program to find Perfect Number using Functions
def PNum(Number):
Sum = 0
for i in range(1, Number):
if(Number % i == 0):
Sum = Sum + i
return Sum
# take input from user
Num = int(input("Please Enter any Number :- "))

if (Num == PNum(Num)):
print("It is a Perfect Number")
else:
print("It is not a Perfect Number")```

Output

```Please Enter any Number :-  5
It is not a Perfect Number ```

### Print perfect numbers from 1 to 100 in python

• Get min and max number input from the user.
• Check whether the number is Perfect number or not using the Python For Loop.
• Print the result.
```# Python Program to find Perfect Number between 1 to 100
# Taking input from the user
Min = int(input("Please Enter any Minimum Value :- "))
Max = int(input("Please Enter any Maximum Value :- "))
# initialise sum
# Checking the Perfect Number
for Number in range(Min, Max - 1):

Sum = 0

for n in range(1, Number - 1):
if(Number % n == 0):
Sum = Sum + n

# display the result
if(Sum == Number):
print(" %d " %Number)```

Output

```Please Enter any Minimum Value :-  1
Please Enter any Maximum Value :-  100
6
28 ```