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