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