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.
All worksheets are created by the team of experienced teachers at Cazoom Math.
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This worksheet is specifically designed for 4th grade students who are developing their understanding of number properties. At this level, students are ready to explore the concepts of prime and composite numbers while building on their multiplication foundations. The activities help bridge basic multiplication skills with more advanced number theory concepts.