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