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