Math Problem Statement

What is the maximum power of n such that n divides 500! (500 factorial)?

Solution

The homework problem asks for "the maximum power of a number nn such that nn divides 500! (500 factorial)." To clarify, you're tasked with finding the maximum power of some integer nn that divides 500!500!, meaning you need to determine how many times nn divides evenly into 500!500!. This type of problem is typically solved using prime factorization.

If the problem is asking for the maximum power of a specific prime number pp (or another integer), you'll need to find how many times pp can divide into 500!500!. This is calculated by:

Maximum Power of p=k=1500pk\text{Maximum Power of } p = \sum_{k=1}^{\infty} \left\lfloor \frac{500}{p^k} \right\rfloor where x\left\lfloor x \right\rfloor denotes the floor function, which rounds down to the nearest integer.

For example, if the number nn is a prime like 2, 3, 5, etc., you'd calculate this sum for the chosen pp.

Let me know:

  • Is there a specific number nn for which you need to find the maximum power in 500!500!?

Or I can guide you through a general example!

Would you like further explanation, or should I solve an example for a specific prime like 2, 3, or 5?


Related questions to expand on the topic:

  1. How do you calculate the maximum power of a prime factor in any factorial?
  2. What is the purpose of the floor function in this type of problem?
  3. Can this method be extended to composite numbers like 12 or 20 instead of primes?
  4. What other real-life applications does prime factorization have?
  5. How does the rate of decrease in the quotient 500pk\frac{500}{p^k} influence the calculation?

Tip:

In such problems, prime factorization is key. Always break the problem into smaller parts to handle large numbers systematically.

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Math Problem Analysis

Mathematical Concepts

Prime Factorization
Factorial
Divisibility

Formulas

n divides m! if and only if m! contains all prime factors of n with the required multiplicities
Maximum Power of p in n! = ∑ ⌊n/p^k⌋ for k ≥ 1 until ⌊n/p^k⌋ = 0

Theorems

Prime Factorization Theorem
Divisibility Rules

Suitable Grade Level

Grades 10-12