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