Day 18 : Python Program to Find Numbers which are Divisible by 7 and multiple of 5 in a Given Range

 def find_numbers(start, end):

    print(f"Numbers divisible by 7 and multiple of 5 between {start} and {end}:")

    for num in range(start, end + 1):

        if num % 7 == 0 and num % 5 == 0: 

            print(num, end=' ')

    print() 

start = int(input("Enter the start of the range: "))

end = int(input("Enter the end of the range: "))

find_numbers(start, end)

Code Explanation:

1. Function Definition

def find_numbers(start, end):

def: Declares a new function.

find_numbers: The name of the function, which finds numbers meeting specific criteria within a range.

start, end: Input parameters representing the range boundaries.

2. Displaying the Purpose

    print(f"Numbers divisible by 7 and multiple of 5 between {start} and {end}:")

print(): Displays a message to indicate what the program is doing.

f-string: Used to format the message dynamically, inserting the start and end values into the string.

3. Iterating Through the Range

    for num in range(start, end + 1):

for num in range(start, end + 1):

A for loop that iterates over every number (num) in the range from start to end (inclusive).

range(start, end + 1): Generates a sequence of numbers from start to end.

4. Checking Conditions

        if num % 7 == 0 and num % 5 == 0:

if: Conditional statement to check if num meets both criteria:

num % 7 == 0: Checks if num is divisible by 7 (remainder is 0).

num % 5 == 0: Checks if num is divisible by 5 (remainder is 0).

and: Combines both conditions; both must be true for the if block to execute.

5. Printing the Numbers

            print(num, end=' ')

print(num, end=' '):

Prints num if it meets the conditions.

end=' ': Keeps the output on the same line with a space between numbers instead of starting a new line.

6. Adding a New Line

    print()

print(): Prints an empty line after the loop to ensure a clean output.

7. Taking Input for the Range

start = int(input("Enter the start of the range: "))

end = int(input("Enter the end of the range: "))

input("..."): Prompts the user to enter the start and end values for the range.

int(): Converts the user input (string) into an integer.

8. Calling the Function

find_numbers(start, end)

find_numbers(start, end): Calls the function with the user-provided start and end values.

What the Program Does

It identifies all numbers between start and end (inclusive) that are:

Divisible by 7.

Multiples of 5 (or equivalently divisible by 5).

#source code --> clcoding.com