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