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