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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is 18 mod 5?
💡 Hint: Find how many times 5 fits into 18, and what’s left over.
Question 2
Easy
Calculate (4 + 6) mod 5.
💡 Hint: Add the numbers first, then find the remainder when divided by 5.
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 9 mod 4?
- 1
- 2
- 3
💡 Hint: Perform the division and find the leftover.
Question 2
Is division always defined in modular arithmetic?
- True
- False
💡 Hint: Think about how division handles negative or smaller numbers in the modulus.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Using the square-and-multiply algorithm, find 7^23 mod 5.
💡 Hint: Convert the exponent to binary first.
Question 2
Provide a real-world application of modular arithmetic in cryptography.
💡 Hint: Think about how encrypting messages requires specific math operations that secure them.
Challenge and get performance evaluation