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