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