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