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