Forum — Daily Challenge

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    2. Daily Challenge Course Discussion
    3. Practice Mini-Courses
    4. Workout 5A (Number Theory)
    5. Week 2

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    • Day 5

      Base Conversion
      Factorial Mod 314
      The Biggest Factor
      A String of 2's
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    • Day 6

      Factorize 9991
      Finding the Sum of Digits
      A Proof About Primes
      Base 10 to Base 9
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    • Day 7

      A Cube and a Square
      Find a Prime
      1's and 0's
      Bonus: Constructing a Set of Nonprimes
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    • Day 8

      Mod 17
      Find All Solutions
      Revisiting GCDs
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      T

      a=4
      b=2
      Then gcd(a, b)=2 and gcd(a, 2b)=4!!!

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