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