1. Stating the problem: We need to find the Least Common Multiple (LCM) and Highest Common Factor (HCF, also called GCD) of given numbers. 2. Explanation: The HCF of two or more numbers is the greatest number that divides all of them exactly. The LCM is the smallest number that is a multiple of all given numbers. 3. To find HCF, list out the prime factors of each number and multiply the common factors with the smallest exponent. 4. To find LCM, list out the prime factors of each number and multiply all factors with the highest exponent found in any number. Since you didn't provide specific numbers, please provide them so I can calculate the LCM and HCF for you.