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