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