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