Prime & Composite Worksheet
Recommended for 4th Grade — 6th Grade
Prime & Composite Worksheet
Name: ____________________Date: ____________
Instructions: Identifying prime and composite numbers and writing prime factorizations.
20 problems
- Prime numbers in {21, 7, 27, 5, 13, 17} → ______
- Prime numbers in {5, 13, 23, 2, 15, 11} → ______
- Prime numbers in {25, 3, 19, 13, 12, 27} → ______
- Prime numbers in {9, 2, 3, 11, 12, 5} → ______
- Prime numbers in {29, 3, 23, 25, 12, 11} → ______
- Prime numbers in {17, 19, 13, 29, 3, 25} → ______
- Prime numbers in {21, 9, 3, 29, 12, 2} → ______
- Prime numbers in {13, 19, 25, 17, 7, 15} → ______
- Prime numbers in {29, 15, 13, 23, 8, 21} → ______
- Prime numbers in {12, 13, 25, 3, 19, 9} → ______
- Prime numbers in {8, 11, 29, 12, 7, 5} → ______
- Prime numbers in {8, 12, 19, 15, 3, 5} → ______
- Prime numbers in {25, 12, 8, 3, 2, 23} → ______
- Prime numbers in {5, 25, 3, 17, 27, 15} → ______
- Prime numbers in {27, 11, 5, 8, 19, 17} → ______
- Prime numbers in {17, 3, 9, 5, 12, 21} → ______
- Prime numbers in {12, 23, 8, 3, 5, 27} → ______
- Prime numbers in {11, 23, 29, 8, 19, 3} → ______
- Prime numbers in {3, 9, 8, 2, 23, 11} → ______
- Prime numbers in {2, 11, 9, 27, 13, 7} → ______