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