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