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