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