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