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