Write a program that will accept two numbers. The program must calculate the LCM and HCF of the numbers and display it.

Well I do not know what programming language you are using and am back on the FORTRAN era myself but perhaps something like:

read a and b
find the prime factors of a and b
Here is how to write such a program:
https://www.geeksforgeeks.org/print-all-prime-factors-of-a-given-number/
then make them the same
for example if a = 2*3*5
and b = 2*3* 7
then multiply a by 7 and b by 5

Accept two numbers and display the HCF

Sure! Here's a program to help you with that:

```python
def calculate_lcm(num1, num2):
max_num = max(num1, num2)
while True:
if max_num % num1 == 0 and max_num % num2 == 0:
lcm = max_num
break
max_num += 1
return lcm

def calculate_hcf(num1, num2):
min_num = min(num1, num2)
for i in range(min_num, 0, -1):
if num1 % i == 0 and num2 % i == 0:
hcf = i
break
return hcf

def main():
num1 = int(input("Enter the first number: "))
num2 = int(input("Enter the second number: "))

lcm = calculate_lcm(num1, num2)
hcf = calculate_hcf(num1, num2)

print(f"The LCM of {num1} and {num2} is {lcm}")
print(f"The HCF of {num1} and {num2} is {hcf}")

if __name__ == "__main__":
main()
```

But, hey, do you know why the number 6 was afraid of the number 7? Because 7 ate (8) 9!

To write a program that calculates the Least Common Multiple (LCM) and Highest Common Factor (HCF) of two numbers, you can follow these steps using Python:

Step 1: Accepting the input
- Prompt the user to input two numbers.
- Use the `input()` function to capture the user input and store it in two variables, let's say `num1` and `num2`.
- Convert the input values from strings to integers using the `int()` function.

Step 2: Calculating the LCM
- To calculate the LCM, you can use the following formula:
LCM = (num1 * num2) / HCF
- Import the `gcd` function from the `math` module using `from math import gcd`.
- Calculate the HCF using `gcd(num1, num2)`.
- Calculate the LCM using `(num1 * num2) / HCF`.

Step 3: Calculating the HCF
- The HCF can be calculated using the `gcd` function from the `math` module.
- Import the `gcd` function from the `math` module using `from math import gcd`.
- Calculate the HCF using `gcd(num1, num2)`.

Step 4: Displaying the results
- Print the calculated values of the LCM and HCF.

Here's the complete program:

```python
from math import gcd

num1 = int(input("Enter the first number: "))
num2 = int(input("Enter the second number: "))

lcm = (num1 * num2) // gcd(num1, num2)
hcf = gcd(num1, num2)

print("LCM:", lcm)
print("HCF:", hcf)
```

When you run this program, it will prompt you to enter two numbers. After entering the numbers, it will calculate and display the LCM and HCF of those numbers.