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