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