Practice Modular Arithmetic - 7.4 | 7. Lecture - 55: Modular Arithmetic | Discrete Mathematics - Vol 3
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is 10 mod 3?

💡 Hint: Think about how many times `3` fits into `10`.

Question 2

Easy

Is 9 ≡ 3 mod 6 true or false?

💡 Hint: What is the remainder of both `9` and `3` when divided by `6`?

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 is -11 mod 3?

  • -1
  • 1
  • 2

💡 Hint: Convert negative to positive equivalent.

Question 2

True or False: Division is always well-defined in modular arithmetic.

  • True
  • False

💡 Hint: Consider the conditions under which division holds.

Solve 2 more questions and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Given a = 12, b = 15, and N = 10, calculate (a * b) mod N using modular properties. Then explore how changing N affects the result.

💡 Hint: Perform multiplication first, then apply mod.

Question 2

Implement and analyze the efficiency of the square-and-multiply algorithm for calculating a^b mod N for large b. Discuss the time complexity.

💡 Hint: Focus on breaking down the exponent into binary for efficiency.

Challenge and get performance evaluation