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