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 {5, 21, 11, 19, 9, 3} → ______
- Prime numbers in {9, 2, 3, 21, 7, 25} → ______
- Prime numbers in {21, 19, 2, 13, 9, 8} → ______
- Prime numbers in {27, 23, 12, 9, 21, 3} → ______
- Prime numbers in {21, 13, 12, 25, 23, 11} → ______
- Prime numbers in {23, 8, 25, 13, 11, 7} → ______
- Prime numbers in {7, 3, 5, 11, 29, 23} → ______
- Prime numbers in {5, 9, 12, 27, 19, 8} → ______
- Prime numbers in {19, 21, 8, 11, 5, 23} → ______
- Prime numbers in {2, 8, 25, 7, 11, 27} → ______
- Prime numbers in {13, 8, 2, 12, 7, 27} → ______
- Prime numbers in {8, 3, 29, 23, 2, 7} → ______
- Prime numbers in {9, 29, 13, 5, 3, 19} → ______
- Prime numbers in {27, 5, 17, 11, 2, 13} → ______
- Prime numbers in {27, 17, 25, 13, 8, 12} → ______
- Prime numbers in {11, 29, 13, 23, 8, 12} → ______
- Prime numbers in {13, 23, 25, 29, 9, 17} → ______
- Prime numbers in {19, 11, 21, 2, 8, 9} → ______
- Prime numbers in {12, 3, 17, 27, 29, 19} → ______
- Prime numbers in {2, 29, 27, 5, 13, 17} → ______