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