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