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