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