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