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