4.OA.B.4 Workbooks
CCSS.MATH.CONTENT.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."
These workbooks can help students practice this Common Core State Standards skill.