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