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