Python Program to print Prime Numbers from 1 to 100

Write a Python Program to print Prime numbers from 1 to 100, or 1 to n, or minimum to maximum with example. In this Python program, we also calculate the sum of prime numbers from 1 to n.

Python Program to print Prime Numbers from 1 to 100 using For Loop

This python program display the prime numbers from 1 to 100.

First, we used For Loop to iterate a loop between 1 and 100 values. Within the for loop,

• We used another For Loop to check whether the number is divisible or not. If true, count incremented, and break statement skip that number.
• Next, if statement checks whether the count is zero, and the given number is not equal to 1. If it is true, it prints the number because it is a Prime Number.

TIP: I suggest you refer to the Prime Number article to understand the Python logic.

# Python Program to print Prime Numbers from 1 to 100
 
for Number in range (1, 101):
    count = 0
    for i in range(2, (Number//2 + 1)):
        if(Number % i == 0):
            count = count + 1
            break

    if (count == 0 and Number != 1):
        print(" %d" %Number, end = '  ')

OUTPUT

Python Program to print Prime Numbers from 1 to 100 using While Loop

We just replaced the For loop in the above Python Prime Numbers example with While loop.

# Python Program to print Prime Numbers from 1 to 100
 
Number = 1

while(Number <= 100):
    count = 0
    i = 2
    
    while(i <= Number//2):
        if(Number % i == 0):
            count = count + 1
            break
        i = i + 1

    if (count == 0 and Number != 1):
        print(" %d" %Number, end = '  ')
    Number = Number  + 1

OUTPUT

Python Program to print Prime Numbers from 1 to N using For Loop

Instead of madly printing prime numbers from 1 to 100, this python program allows users to enter the minimum and maximum values. Next, it prints prime numbers between Minimum and Maximum values.

 # Python Program to print Prime Numbers from 1 to N
 
minimum = int(input(" Please Enter the Minimum Value: "))
maximum = int(input(" Please Enter the Maximum Value: "))

for Number in range (minimum, maximum + 1):
    count = 0
    for i in range(2, (Number//2 + 1)):
        if(Number % i == 0):
            count = count + 1
            break

    if (count == 0 and Number != 1):
        print(" %d" %Number, end = '  ')

OUTPUT

Python Program to print Prime Numbers from 1 to N using While Loop

This program to display prime numbers from 1 to N is the same as above. We replaced the For loop with While Loop.

 # Python Program to print Prime Numbers from 1 to N
 
minimum = int(input(" Please Enter the Minimum Value: "))
maximum = int(input(" Please Enter the Maximum Value: "))

Number = minimum

while(Number <= maximum):
    count = 0
    i = 2
    
    while(i <= Number//2):
        if(Number % i == 0):
            count = count + 1
            break
        i = i + 1

    if (count == 0 and Number != 1):
        print(" %d" %Number, end = '  ')
    Number = Number  + 1

OUTPUT

Python Program to return Sum of Prime Numbers from 1 to 100

This program finds the prime numbers between 1 and 100. Next, it’s going to add those numbers to find the sum of prime numbers between 1 and 100.

 # Python Program to find Sum of Prime Numbers from 1 to N
 
minimum = int(input(" Please Enter the Minimum Value: "))
maximum = int(input(" Please Enter the Maximum Value: "))
total = 0

for Number in range (minimum, maximum + 1):
    count = 0
    for i in range(2, (Number//2 + 1)):
        if(Number % i == 0):
            count = count + 1
            break

    if (count == 0 and Number != 1):
        print(" %d" %Number, end = '  ')
        total = total + Number

print("\n\nSum of Prime Numbers from %d to %d = %d" %(minimum, maximum, total))

OUTPUT

Python Program to find Sum of Prime Numbers from 1 to N

It allows the user to enter Minimum and Maximum values. Next, Python returns the sum of prime numbers between Minimum and Maximum values

 # Python Program to print Prime Numbers from 1 to N
 
minimum = int(input(" Please Enter the Minimum Value: "))
maximum = int(input(" Please Enter the Maximum Value: "))
total = 0

Number = minimum

while(Number <= maximum):
    count = 0
    i = 2
    
    while(i <= Number//2):
        if(Number % i == 0):
            count = count + 1
            break
        i = i + 1

    if (count == 0 and Number != 1):
        print(" %d" %Number, end = '  ')
        total = total + Number
    Number = Number  + 1
        
print("\n\nSum of Prime Numbers from %d to %d = %d" %(minimum, maximum, total))

OUTPUT