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Identifying Prime Numbers WORKSHEET
Suitable for Grades: 4th Grade
CCSS: 4.OA.B.4
CCSS Description: 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.
Identifying Prime Numbers WORKSHEET DESCRIPTION
Students will learn how to categorise numbers up to 100 as either prime or composite whilst completing this worksheet. Section A looks at divisibility laws and identifying multiples of 2, 3, 5 and 7 and then in section B students use these laws to decide whether ten numbers are prime or composite.
