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