Number Theory


This chapter discusses factoring, multiplies, divisibility, and prime numbers. Greatest common factors and least common multiples are reviewed. Students will be introduced to bases and will learn how to convert between base 10 and other bases. Students will also learn how to add numbers in other bases before finishing the chapter with a section on sequences.

What you can expect to learn

After completing these activities you should be able to

  1. Identify factors and multiples of numbers.
  2. Use the divisibility rules to determine whether a number is divisible by 2, 3, 4, 5, 6, 8, 9, or 10.
  3. Identify whether a number is prime or composite and find the prime factorization of a composite number.
  4. Find the greatest common factor of a set of numbers.
  5. Find the least common multiple of a set of numbers.
  6. Convert a number in another base to a base 10 number.
  7. Convert base 10 numbers to other bases, and be able to add numbers in other bases.
  8. Find the missing term in a sequence of numbers.
Activity List