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