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