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