Practice Carmichael Numbers - 12.1.7 | 12. Introduction to Fermat’s Little Theorem and Primality Testing | Discrete Mathematics - Vol 3
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

State Fermat's Little Theorem.

💡 Hint: Focus on the exponent and the condition of divisibility.

Question 2

Easy

Is 561 a prime number?

💡 Hint: Think about factorization.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What does Fermat's Little Theorem state?

  • If p is prime and a is any integer
  • then a^(p-1) ≡ 1 (mod p)
  • If n is composite and a is a prime number
  • then a^n ≡ 0 (mod n)
  • If p is prime and a is divisible by p
  • then a^(p-1) ≠ 1 (mod p)

💡 Hint: Focus on the role of prime numbers and congruences.

Question 2

Carmichael numbers are:

  • True
  • False

💡 Hint: Consider their relationship to primality testing.

Solve and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Find another example of a Carmichael number and prove it using Fermat's theorem.

💡 Hint: Factor the Carmichael number to find key primes.

Question 2

Discuss how knowledge of Carmichael numbers can improve cryptographic algorithms.

💡 Hint: Think about how false positives could compromise security.

Challenge and get performance evaluation