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