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