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 {13, 21, 27, 23, 3, 25} → ______
- Prime numbers in {5, 19, 21, 15, 25, 11} → ______
- Prime numbers in {21, 12, 19, 2, 27, 13} → ______
- Prime numbers in {8, 15, 13, 21, 9, 11} → ______
- Prime numbers in {13, 11, 15, 23, 8, 5} → ______
- Prime numbers in {25, 15, 19, 3, 17, 21} → ______
- Prime numbers in {11, 27, 15, 25, 21, 13} → ______
- Prime numbers in {7, 15, 29, 23, 12, 27} → ______
- Prime numbers in {29, 7, 2, 27, 21, 25} → ______
- Prime numbers in {8, 3, 27, 5, 15, 9} → ______
- Prime numbers in {23, 8, 5, 21, 7, 13} → ______
- Prime numbers in {19, 23, 11, 5, 3, 9} → ______
- Prime numbers in {3, 15, 8, 9, 12, 2} → ______
- Prime numbers in {21, 25, 7, 15, 19, 8} → ______
- Prime numbers in {9, 12, 11, 2, 17, 27} → ______
- Prime numbers in {27, 7, 5, 3, 8, 21} → ______
- Prime numbers in {11, 9, 7, 8, 3, 12} → ______
- Prime numbers in {13, 27, 17, 19, 21, 9} → ______
- Prime numbers in {13, 3, 11, 15, 8, 27} → ______
- Prime numbers in {2, 25, 15, 19, 9, 17} → ______