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