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