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