4.OA.B. Gain familiarity with factors and multiples.

• Identifying Multiples
• Multiples of 3, 6, and 7
• Numbers in a Multiplication Table

4.OA.B.4. Find all factor pairs for a whole number in the range 1–100. Recognize that a whole number is a multiple of each of its factors. Determine whether a given whole number in the range 1–100 is a multiple of a given one-digit number. Determine whether a given whole number in the range 1–100 is prime or composite.

• The Locker Game