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