Number Theory Challenge - Six Engaging Questions
Test your grasp of primes, residues, and integer tricks with six carefully crafted problems.
Quiz Questions
Answer all questions below and test your knowledge.
- 1
Which of the following numbers is a Sophie Germain prime?
- 2
What is the remainder when 7^2025 is divided by 10?
- 3
Which integer must be added to 123456 to make the sum divisible by 9?
- 4
What is φ(36)?
- 5
The greatest common divisor of 84 and 110 is?
- 6
For prime p=13, what is 5^{12} mod 13?
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