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