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