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