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